Home / 99,830.60-149,748.30-29,712.20

Finding the Fourth Proportional to 99,830.60, 149,748.30 and 29,712.20

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Solution

The fourth proportional to 99,830.60, 149,748.30 and 29,712.20 is: 44,569.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,830.60 : 149,748.30 = 29,712.20 : x
  2. Step 2: Convert to fraction form
    99,830.60/149,748.30 = 29,712.20/x
  3. Step 3: Cross multiply
    99,830.60x = 149,748.30 × 29,712.20
  4. Step 4: Simplify right side
    99,830.60x = 4,449,351,439.26
  5. Step 5: Solve for x
    x = 4,449,351,439.26/99,830.60
  6. Step 6: Final answer
    x = 44,569.01

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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.