Home / 105,632.64-145,465.80-98,878.92

Finding the Fourth Proportional to 105,632.64, 145,465.80 and 98,878.92

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Solution

The fourth proportional to 105,632.64, 145,465.80 and 98,878.92 is: 136,165.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,632.64 : 145,465.80 = 98,878.92 : x
  2. Step 2: Convert to fraction form
    105,632.64/145,465.80 = 98,878.92/x
  3. Step 3: Cross multiply
    105,632.64x = 145,465.80 × 98,878.92
  4. Step 4: Simplify right side
    105,632.64x = 14,383,501,200.94
  5. Step 5: Solve for x
    x = 14,383,501,200.94/105,632.64
  6. Step 6: Final answer
    x = 136,165.31

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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.