Home / 154,006.50-231,101.91-66,454.50

Finding the Fourth Proportional to 154,006.50, 231,101.91 and 66,454.50

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Solution

The fourth proportional to 154,006.50, 231,101.91 and 66,454.50 is: 99,721.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,006.50 : 231,101.91 = 66,454.50 : x
  2. Step 2: Convert to fraction form
    154,006.50/231,101.91 = 66,454.50/x
  3. Step 3: Cross multiply
    154,006.50x = 231,101.91 × 66,454.50
  4. Step 4: Simplify right side
    154,006.50x = 15,357,761,878.10
  5. Step 5: Solve for x
    x = 15,357,761,878.10/154,006.50
  6. Step 6: Final answer
    x = 99,721.52

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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.