Home / 135,728.34-187,304.82-75,308.16

Finding the Fourth Proportional to 135,728.34, 187,304.82 and 75,308.16

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Solution

The fourth proportional to 135,728.34, 187,304.82 and 75,308.16 is: 103,925.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,728.34 : 187,304.82 = 75,308.16 : x
  2. Step 2: Convert to fraction form
    135,728.34/187,304.82 = 75,308.16/x
  3. Step 3: Cross multiply
    135,728.34x = 187,304.82 × 75,308.16
  4. Step 4: Simplify right side
    135,728.34x = 14,105,581,353.33
  5. Step 5: Solve for x
    x = 14,105,581,353.33/135,728.34
  6. Step 6: Final answer
    x = 103,925.10

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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.