Home / 130,691.25-180,326.12-76,956.66

Finding the Fourth Proportional to 130,691.25, 180,326.12 and 76,956.66

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Solution

The fourth proportional to 130,691.25, 180,326.12 and 76,956.66 is: 106,183.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,691.25 : 180,326.12 = 76,956.66 : x
  2. Step 2: Convert to fraction form
    130,691.25/180,326.12 = 76,956.66/x
  3. Step 3: Cross multiply
    130,691.25x = 180,326.12 × 76,956.66
  4. Step 4: Simplify right side
    130,691.25x = 13,877,295,521.18
  5. Step 5: Solve for x
    x = 13,877,295,521.18/130,691.25
  6. Step 6: Final answer
    x = 106,183.82

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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.