Home / 99,966.60-149,731.20-88,885.80

Finding the Fourth Proportional to 99,966.60, 149,731.20 and 88,885.80

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Solution

The fourth proportional to 99,966.60, 149,731.20 and 88,885.80 is: 133,134.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,966.60 : 149,731.20 = 88,885.80 : x
  2. Step 2: Convert to fraction form
    99,966.60/149,731.20 = 88,885.80/x
  3. Step 3: Cross multiply
    99,966.60x = 149,731.20 × 88,885.80
  4. Step 4: Simplify right side
    99,966.60x = 13,308,977,496.96
  5. Step 5: Solve for x
    x = 13,308,977,496.96/99,966.60
  6. Step 6: Final answer
    x = 133,134.24

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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.