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Finding the Fourth Proportional to 101,328.24, 152,023.12 and 71,803.20

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Solution

The fourth proportional to 101,328.24, 152,023.12 and 71,803.20 is: 107,726.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,328.24 : 152,023.12 = 71,803.20 : x
  2. Step 2: Convert to fraction form
    101,328.24/152,023.12 = 71,803.20/x
  3. Step 3: Cross multiply
    101,328.24x = 152,023.12 × 71,803.20
  4. Step 4: Simplify right side
    101,328.24x = 10,915,746,489.98
  5. Step 5: Solve for x
    x = 10,915,746,489.98/101,328.24
  6. Step 6: Final answer
    x = 107,726.60

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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.