Home / 116,098.32-160,228.92-78,449.52

Finding the Fourth Proportional to 116,098.32, 160,228.92 and 78,449.52

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Solution

The fourth proportional to 116,098.32, 160,228.92 and 78,449.52 is: 108,269.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,098.32 : 160,228.92 = 78,449.52 : x
  2. Step 2: Convert to fraction form
    116,098.32/160,228.92 = 78,449.52/x
  3. Step 3: Cross multiply
    116,098.32x = 160,228.92 × 78,449.52
  4. Step 4: Simplify right side
    116,098.32x = 12,569,881,864.12
  5. Step 5: Solve for x
    x = 12,569,881,864.12/116,098.32
  6. Step 6: Final answer
    x = 108,269.28

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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.