Home / 148,372.32-204,747.12-81,302.88

Finding the Fourth Proportional to 148,372.32, 204,747.12 and 81,302.88

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Solution

The fourth proportional to 148,372.32, 204,747.12 and 81,302.88 is: 112,194.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,372.32 : 204,747.12 = 81,302.88 : x
  2. Step 2: Convert to fraction form
    148,372.32/204,747.12 = 81,302.88/x
  3. Step 3: Cross multiply
    148,372.32x = 204,747.12 × 81,302.88
  4. Step 4: Simplify right side
    148,372.32x = 16,646,530,527.71
  5. Step 5: Solve for x
    x = 16,646,530,527.71/148,372.32
  6. Step 6: Final answer
    x = 112,194.31

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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.