Home / 126,454.60-174,588.70-81,152.11

Finding the Fourth Proportional to 126,454.60, 174,588.70 and 81,152.11

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Solution

The fourth proportional to 126,454.60, 174,588.70 and 81,152.11 is: 112,042.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,454.60 : 174,588.70 = 81,152.11 : x
  2. Step 2: Convert to fraction form
    126,454.60/174,588.70 = 81,152.11/x
  3. Step 3: Cross multiply
    126,454.60x = 174,588.70 × 81,152.11
  4. Step 4: Simplify right side
    126,454.60x = 14,168,240,514.21
  5. Step 5: Solve for x
    x = 14,168,240,514.21/126,454.60
  6. Step 6: Final answer
    x = 112,042.12

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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.