Home / 126,291.08-174,300.54-81,020.18

Finding the Fourth Proportional to 126,291.08, 174,300.54 and 81,020.18

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Solution

The fourth proportional to 126,291.08, 174,300.54 and 81,020.18 is: 111,819.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,291.08 : 174,300.54 = 81,020.18 : x
  2. Step 2: Convert to fraction form
    126,291.08/174,300.54 = 81,020.18/x
  3. Step 3: Cross multiply
    126,291.08x = 174,300.54 × 81,020.18
  4. Step 4: Simplify right side
    126,291.08x = 14,121,861,124.90
  5. Step 5: Solve for x
    x = 14,121,861,124.90/126,291.08
  6. Step 6: Final answer
    x = 111,819.94

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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.