Home / 129,060.03-178,031.06-119,926.68

Finding the Fourth Proportional to 129,060.03, 178,031.06 and 119,926.68

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Solution

The fourth proportional to 129,060.03, 178,031.06 and 119,926.68 is: 165,432.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,060.03 : 178,031.06 = 119,926.68 : x
  2. Step 2: Convert to fraction form
    129,060.03/178,031.06 = 119,926.68/x
  3. Step 3: Cross multiply
    129,060.03x = 178,031.06 × 119,926.68
  4. Step 4: Simplify right side
    129,060.03x = 21,350,673,819.74
  5. Step 5: Solve for x
    x = 21,350,673,819.74/129,060.03
  6. Step 6: Final answer
    x = 165,432.11

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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.