Home / 148,892.12-205,472.40-80,909.08

Finding the Fourth Proportional to 148,892.12, 205,472.40 and 80,909.08

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Solution

The fourth proportional to 148,892.12, 205,472.40 and 80,909.08 is: 111,655.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,892.12 : 205,472.40 = 80,909.08 : x
  2. Step 2: Convert to fraction form
    148,892.12/205,472.40 = 80,909.08/x
  3. Step 3: Cross multiply
    148,892.12x = 205,472.40 × 80,909.08
  4. Step 4: Simplify right side
    148,892.12x = 16,624,582,849.39
  5. Step 5: Solve for x
    x = 16,624,582,849.39/148,892.12
  6. Step 6: Final answer
    x = 111,655.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.