Home / 150,515.34-207,711.18-81,605.04

Finding the Fourth Proportional to 150,515.34, 207,711.18 and 81,605.04

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Solution

The fourth proportional to 150,515.34, 207,711.18 and 81,605.04 is: 112,614.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,515.34 : 207,711.18 = 81,605.04 : x
  2. Step 2: Convert to fraction form
    150,515.34/207,711.18 = 81,605.04/x
  3. Step 3: Cross multiply
    150,515.34x = 207,711.18 × 81,605.04
  4. Step 4: Simplify right side
    150,515.34x = 16,950,279,152.35
  5. Step 5: Solve for x
    x = 16,950,279,152.35/150,515.34
  6. Step 6: Final answer
    x = 112,614.96

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1.5x scale

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.