Home / 127,124.13-175,436.37-69,765.47

Finding the Fourth Proportional to 127,124.13, 175,436.37 and 69,765.47

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Solution

The fourth proportional to 127,124.13, 175,436.37 and 69,765.47 is: 96,279.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,124.13 : 175,436.37 = 69,765.47 : x
  2. Step 2: Convert to fraction form
    127,124.13/175,436.37 = 69,765.47/x
  3. Step 3: Cross multiply
    127,124.13x = 175,436.37 × 69,765.47
  4. Step 4: Simplify right side
    127,124.13x = 12,239,400,808.14
  5. Step 5: Solve for x
    x = 12,239,400,808.14/127,124.13
  6. Step 6: Final answer
    x = 96,279.13

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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.