Home / 257,834.39-386,772.26-97,986.90

Finding the Fourth Proportional to 257,834.39, 386,772.26 and 97,986.90

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Solution

The fourth proportional to 257,834.39, 386,772.26 and 97,986.90 is: 146,988.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,834.39 : 386,772.26 = 97,986.90 : x
  2. Step 2: Convert to fraction form
    257,834.39/386,772.26 = 97,986.90/x
  3. Step 3: Cross multiply
    257,834.39x = 386,772.26 × 97,986.90
  4. Step 4: Simplify right side
    257,834.39x = 37,898,614,273.46
  5. Step 5: Solve for x
    x = 37,898,614,273.46/257,834.39
  6. Step 6: Final answer
    x = 146,988.21

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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.