Home / 135,449,586.72-186,922,891.92-76,724,444.64

Finding the Fourth Proportional to 135,449,586.72, 186,922,891.92 and 76,724,444.64

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Solution

The fourth proportional to 135,449,586.72, 186,922,891.92 and 76,724,444.64 is: 105,881,128.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,449,586.72 : 186,922,891.92 = 76,724,444.64 : x
  2. Step 2: Convert to fraction form
    135,449,586.72/186,922,891.92 = 76,724,444.64/x
  3. Step 3: Cross multiply
    135,449,586.72x = 186,922,891.92 × 76,724,444.64
  4. Step 4: Simplify right side
    135,449,586.72x = 14,341,555,073,064,742
  5. Step 5: Solve for x
    x = 14,341,555,073,064,742/135,449,586.72
  6. Step 6: Final answer
    x = 105,881,128.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.