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Finding the Fourth Proportional to 119,676.38, 165,162.90 and 65,970.95

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Solution

The fourth proportional to 119,676.38, 165,162.90 and 65,970.95 is: 91,045.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,676.38 : 165,162.90 = 65,970.95 : x
  2. Step 2: Convert to fraction form
    119,676.38/165,162.90 = 65,970.95/x
  3. Step 3: Cross multiply
    119,676.38x = 165,162.90 × 65,970.95
  4. Step 4: Simplify right side
    119,676.38x = 10,895,953,417.76
  5. Step 5: Solve for x
    x = 10,895,953,417.76/119,676.38
  6. Step 6: Final answer
    x = 91,045.15

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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.