Home / 124,934.91-187,319.31-68,801.45

Finding the Fourth Proportional to 124,934.91, 187,319.31 and 68,801.45

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Solution

The fourth proportional to 124,934.91, 187,319.31 and 68,801.45 is: 103,156.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,934.91 : 187,319.31 = 68,801.45 : x
  2. Step 2: Convert to fraction form
    124,934.91/187,319.31 = 68,801.45/x
  3. Step 3: Cross multiply
    124,934.91x = 187,319.31 × 68,801.45
  4. Step 4: Simplify right side
    124,934.91x = 12,887,840,141.00
  5. Step 5: Solve for x
    x = 12,887,840,141.00/124,934.91
  6. Step 6: Final answer
    x = 103,156.44

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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.