Home / 99,964.60-149,703.90-53,114.20

Finding the Fourth Proportional to 99,964.60, 149,703.90 and 53,114.20

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Solution

The fourth proportional to 99,964.60, 149,703.90 and 53,114.20 is: 79,542.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,964.60 : 149,703.90 = 53,114.20 : x
  2. Step 2: Convert to fraction form
    99,964.60/149,703.90 = 53,114.20/x
  3. Step 3: Cross multiply
    99,964.60x = 149,703.90 × 53,114.20
  4. Step 4: Simplify right side
    99,964.60x = 7,951,402,885.38
  5. Step 5: Solve for x
    x = 7,951,402,885.38/99,964.60
  6. Step 6: Final answer
    x = 79,542.19

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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.