Home / 119,854.47-165,329.33-76,818.63

Finding the Fourth Proportional to 119,854.47, 165,329.33 and 76,818.63

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Solution

The fourth proportional to 119,854.47, 165,329.33 and 76,818.63 is: 105,964.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,854.47 : 165,329.33 = 76,818.63 : x
  2. Step 2: Convert to fraction form
    119,854.47/165,329.33 = 76,818.63/x
  3. Step 3: Cross multiply
    119,854.47x = 165,329.33 × 76,818.63
  4. Step 4: Simplify right side
    119,854.47x = 12,700,372,629.42
  5. Step 5: Solve for x
    x = 12,700,372,629.42/119,854.47
  6. Step 6: Final answer
    x = 105,964.95

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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.