Home / 129,645.12-177,743.52-127,283.28

Finding the Fourth Proportional to 129,645.12, 177,743.52 and 127,283.28

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Solution

The fourth proportional to 129,645.12, 177,743.52 and 127,283.28 is: 174,505.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,645.12 : 177,743.52 = 127,283.28 : x
  2. Step 2: Convert to fraction form
    129,645.12/177,743.52 = 127,283.28/x
  3. Step 3: Cross multiply
    129,645.12x = 177,743.52 × 127,283.28
  4. Step 4: Simplify right side
    129,645.12x = 22,623,778,224.35
  5. Step 5: Solve for x
    x = 22,623,778,224.35/129,645.12
  6. Step 6: Final answer
    x = 174,505.44

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.