Home / 126,858.47-174,980.30-81,593.71

Finding the Fourth Proportional to 126,858.47, 174,980.30 and 81,593.71

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Solution

The fourth proportional to 126,858.47, 174,980.30 and 81,593.71 is: 112,545.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,858.47 : 174,980.30 = 81,593.71 : x
  2. Step 2: Convert to fraction form
    126,858.47/174,980.30 = 81,593.71/x
  3. Step 3: Cross multiply
    126,858.47x = 174,980.30 × 81,593.71
  4. Step 4: Simplify right side
    126,858.47x = 14,277,291,008.49
  5. Step 5: Solve for x
    x = 14,277,291,008.49/126,858.47
  6. Step 6: Final answer
    x = 112,545.04

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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.