Home / 102,126.56-141,004.08-75,272.16

Finding the Fourth Proportional to 102,126.56, 141,004.08 and 75,272.16

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Solution

The fourth proportional to 102,126.56, 141,004.08 and 75,272.16 is: 103,926.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,126.56 : 141,004.08 = 75,272.16 : x
  2. Step 2: Convert to fraction form
    102,126.56/141,004.08 = 75,272.16/x
  3. Step 3: Cross multiply
    102,126.56x = 141,004.08 × 75,272.16
  4. Step 4: Simplify right side
    102,126.56x = 10,613,681,670.41
  5. Step 5: Solve for x
    x = 10,613,681,670.41/102,126.56
  6. Step 6: Final answer
    x = 103,926.75

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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.