Home / 104,631.52-144,423.12-71,116.96

Finding the Fourth Proportional to 104,631.52, 144,423.12 and 71,116.96

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Solution

The fourth proportional to 104,631.52, 144,423.12 and 71,116.96 is: 98,162.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,631.52 : 144,423.12 = 71,116.96 : x
  2. Step 2: Convert to fraction form
    104,631.52/144,423.12 = 71,116.96/x
  3. Step 3: Cross multiply
    104,631.52x = 144,423.12 × 71,116.96
  4. Step 4: Simplify right side
    104,631.52x = 10,270,933,248.12
  5. Step 5: Solve for x
    x = 10,270,933,248.12/104,631.52
  6. Step 6: Final answer
    x = 98,162.90

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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.