Home / 119,631.84-165,103.57-89,364.61

Finding the Fourth Proportional to 119,631.84, 165,103.57 and 89,364.61

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Solution

The fourth proportional to 119,631.84, 165,103.57 and 89,364.61 is: 123,331.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,631.84 : 165,103.57 = 89,364.61 : x
  2. Step 2: Convert to fraction form
    119,631.84/165,103.57 = 89,364.61/x
  3. Step 3: Cross multiply
    119,631.84x = 165,103.57 × 89,364.61
  4. Step 4: Simplify right side
    119,631.84x = 14,754,416,778.83
  5. Step 5: Solve for x
    x = 14,754,416,778.83/119,631.84
  6. Step 6: Final answer
    x = 123,331.86

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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.