Home / 109,115.53-150,562.07-61,359.65

Finding the Fourth Proportional to 109,115.53, 150,562.07 and 61,359.65

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Solution

The fourth proportional to 109,115.53, 150,562.07 and 61,359.65 is: 84,666.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,115.53 : 150,562.07 = 61,359.65 : x
  2. Step 2: Convert to fraction form
    109,115.53/150,562.07 = 61,359.65/x
  3. Step 3: Cross multiply
    109,115.53x = 150,562.07 × 61,359.65
  4. Step 4: Simplify right side
    109,115.53x = 9,238,435,695.47
  5. Step 5: Solve for x
    x = 9,238,435,695.47/109,115.53
  6. Step 6: Final answer
    x = 84,666.55

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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.