Home / 99,621.12-149,432.16-29,501.76

Finding the Fourth Proportional to 99,621.12, 149,432.16 and 29,501.76

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Solution

The fourth proportional to 99,621.12, 149,432.16 and 29,501.76 is: 44,252.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,621.12 : 149,432.16 = 29,501.76 : x
  2. Step 2: Convert to fraction form
    99,621.12/149,432.16 = 29,501.76/x
  3. Step 3: Cross multiply
    99,621.12x = 149,432.16 × 29,501.76
  4. Step 4: Simplify right side
    99,621.12x = 4,408,511,720.60
  5. Step 5: Solve for x
    x = 4,408,511,720.60/99,621.12
  6. Step 6: Final answer
    x = 44,252.78

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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.