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Finding the Fourth Proportional to 101,479.28, 152,136.88 and 42,359.20

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Solution

The fourth proportional to 101,479.28, 152,136.88 and 42,359.20 is: 63,504.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,479.28 : 152,136.88 = 42,359.20 : x
  2. Step 2: Convert to fraction form
    101,479.28/152,136.88 = 42,359.20/x
  3. Step 3: Cross multiply
    101,479.28x = 152,136.88 × 42,359.20
  4. Step 4: Simplify right side
    101,479.28x = 6,444,396,041.06
  5. Step 5: Solve for x
    x = 6,444,396,041.06/101,479.28
  6. Step 6: Final answer
    x = 63,504.55

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.