Home / 99,984.60-149,733.90-53,134.20

Finding the Fourth Proportional to 99,984.60, 149,733.90 and 53,134.20

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Solution

The fourth proportional to 99,984.60, 149,733.90 and 53,134.20 is: 79,572.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,984.60 : 149,733.90 = 53,134.20 : x
  2. Step 2: Convert to fraction form
    99,984.60/149,733.90 = 53,134.20/x
  3. Step 3: Cross multiply
    99,984.60x = 149,733.90 × 53,134.20
  4. Step 4: Simplify right side
    99,984.60x = 7,955,990,989.38
  5. Step 5: Solve for x
    x = 7,955,990,989.38/99,984.60
  6. Step 6: Final answer
    x = 79,572.16

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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.