Home / 129,050.17-178,094.26-71,693.82

Finding the Fourth Proportional to 129,050.17, 178,094.26 and 71,693.82

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Solution

The fourth proportional to 129,050.17, 178,094.26 and 71,693.82 is: 98,940.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,050.17 : 178,094.26 = 71,693.82 : x
  2. Step 2: Convert to fraction form
    129,050.17/178,094.26 = 71,693.82/x
  3. Step 3: Cross multiply
    129,050.17x = 178,094.26 × 71,693.82
  4. Step 4: Simplify right side
    129,050.17x = 12,768,257,819.47
  5. Step 5: Solve for x
    x = 12,768,257,819.47/129,050.17
  6. Step 6: Final answer
    x = 98,940.26

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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.