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Finding the Fourth Proportional to 101,620.74, 152,431.17 and 42,424.14

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Solution

The fourth proportional to 101,620.74, 152,431.17 and 42,424.14 is: 63,636.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,620.74 : 152,431.17 = 42,424.14 : x
  2. Step 2: Convert to fraction form
    101,620.74/152,431.17 = 42,424.14/x
  3. Step 3: Cross multiply
    101,620.74x = 152,431.17 × 42,424.14
  4. Step 4: Simplify right side
    101,620.74x = 6,466,761,296.44
  5. Step 5: Solve for x
    x = 6,466,761,296.44/101,620.74
  6. Step 6: Final answer
    x = 63,636.24

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1.5x scale

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.