Home / 135,747.31-187,331.07-75,327.16

Finding the Fourth Proportional to 135,747.31, 187,331.07 and 75,327.16

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Solution

The fourth proportional to 135,747.31, 187,331.07 and 75,327.16 is: 103,951.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,747.31 : 187,331.07 = 75,327.16 : x
  2. Step 2: Convert to fraction form
    135,747.31/187,331.07 = 75,327.16/x
  3. Step 3: Cross multiply
    135,747.31x = 187,331.07 × 75,327.16
  4. Step 4: Simplify right side
    135,747.31x = 14,111,117,482.86
  5. Step 5: Solve for x
    x = 14,111,117,482.86/135,747.31
  6. Step 6: Final answer
    x = 103,951.36

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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.