Home / 157,142.48-235,713.72-129,382.16

Finding the Fourth Proportional to 157,142.48, 235,713.72 and 129,382.16

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Solution

The fourth proportional to 157,142.48, 235,713.72 and 129,382.16 is: 194,073.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,142.48 : 235,713.72 = 129,382.16 : x
  2. Step 2: Convert to fraction form
    157,142.48/235,713.72 = 129,382.16/x
  3. Step 3: Cross multiply
    157,142.48x = 235,713.72 × 129,382.16
  4. Step 4: Simplify right side
    157,142.48x = 30,497,150,235.24
  5. Step 5: Solve for x
    x = 30,497,150,235.24/157,142.48
  6. Step 6: Final answer
    x = 194,073.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.