Home / 119,743.11-165,245.47-66,031.61

Finding the Fourth Proportional to 119,743.11, 165,245.47 and 66,031.61

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Solution

The fourth proportional to 119,743.11, 165,245.47 and 66,031.61 is: 91,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,743.11 : 165,245.47 = 66,031.61 : x
  2. Step 2: Convert to fraction form
    119,743.11/165,245.47 = 66,031.61/x
  3. Step 3: Cross multiply
    119,743.11x = 165,245.47 × 66,031.61
  4. Step 4: Simplify right side
    119,743.11x = 10,911,423,438.00
  5. Step 5: Solve for x
    x = 10,911,423,438.00/119,743.11
  6. Step 6: Final answer
    x = 91,123.60

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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.