Home / 117,818.29-176,660.52-80,423.65

Finding the Fourth Proportional to 117,818.29, 176,660.52 and 80,423.65

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Solution

The fourth proportional to 117,818.29, 176,660.52 and 80,423.65 is: 120,589.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,818.29 : 176,660.52 = 80,423.65 : x
  2. Step 2: Convert to fraction form
    117,818.29/176,660.52 = 80,423.65/x
  3. Step 3: Cross multiply
    117,818.29x = 176,660.52 × 80,423.65
  4. Step 4: Simplify right side
    117,818.29x = 14,207,683,829.30
  5. Step 5: Solve for x
    x = 14,207,683,829.30/117,818.29
  6. Step 6: Final answer
    x = 120,589.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.