Home / 157,710.24-217,087.70-137,531.52

Finding the Fourth Proportional to 157,710.24, 217,087.70 and 137,531.52

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Solution

The fourth proportional to 157,710.24, 217,087.70 and 137,531.52 is: 189,311.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,710.24 : 217,087.70 = 137,531.52 : x
  2. Step 2: Convert to fraction form
    157,710.24/217,087.70 = 137,531.52/x
  3. Step 3: Cross multiply
    157,710.24x = 217,087.70 × 137,531.52
  4. Step 4: Simplify right side
    157,710.24x = 29,856,400,666.65
  5. Step 5: Solve for x
    x = 29,856,400,666.65/157,710.24
  6. Step 6: Final answer
    x = 189,311.74

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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.