Home / 99,802.80-149,272.20-89,348.40

Finding the Fourth Proportional to 99,802.80, 149,272.20 and 89,348.40

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Solution

The fourth proportional to 99,802.80, 149,272.20 and 89,348.40 is: 133,635.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,802.80 : 149,272.20 = 89,348.40 : x
  2. Step 2: Convert to fraction form
    99,802.80/149,272.20 = 89,348.40/x
  3. Step 3: Cross multiply
    99,802.80x = 149,272.20 × 89,348.40
  4. Step 4: Simplify right side
    99,802.80x = 13,337,232,234.48
  5. Step 5: Solve for x
    x = 13,337,232,234.48/99,802.80
  6. Step 6: Final answer
    x = 133,635.85

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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.