Home / 99,657.12-149,506.20-40,492.68

Finding the Fourth Proportional to 99,657.12, 149,506.20 and 40,492.68

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Solution

The fourth proportional to 99,657.12, 149,506.20 and 40,492.68 is: 60,747.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,657.12 : 149,506.20 = 40,492.68 : x
  2. Step 2: Convert to fraction form
    99,657.12/149,506.20 = 40,492.68/x
  3. Step 3: Cross multiply
    99,657.12x = 149,506.20 × 40,492.68
  4. Step 4: Simplify right side
    99,657.12x = 6,053,906,714.62
  5. Step 5: Solve for x
    x = 6,053,906,714.62/99,657.12
  6. Step 6: Final answer
    x = 60,747.36

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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.