Home / 135,199.89-186,572.41-74,768.92

Finding the Fourth Proportional to 135,199.89, 186,572.41 and 74,768.92

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Solution

The fourth proportional to 135,199.89, 186,572.41 and 74,768.92 is: 103,179.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,199.89 : 186,572.41 = 74,768.92 : x
  2. Step 2: Convert to fraction form
    135,199.89/186,572.41 = 74,768.92/x
  3. Step 3: Cross multiply
    135,199.89x = 186,572.41 × 74,768.92
  4. Step 4: Simplify right side
    135,199.89x = 13,949,817,597.50
  5. Step 5: Solve for x
    x = 13,949,817,597.50/135,199.89
  6. Step 6: Final answer
    x = 103,179.21

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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.