Home / 127,356.86-175,753.26-79,638.14

Finding the Fourth Proportional to 127,356.86, 175,753.26 and 79,638.14

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Solution

The fourth proportional to 127,356.86, 175,753.26 and 79,638.14 is: 109,901.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,356.86 : 175,753.26 = 79,638.14 : x
  2. Step 2: Convert to fraction form
    127,356.86/175,753.26 = 79,638.14/x
  3. Step 3: Cross multiply
    127,356.86x = 175,753.26 × 79,638.14
  4. Step 4: Simplify right side
    127,356.86x = 13,996,661,846.57
  5. Step 5: Solve for x
    x = 13,996,661,846.57/127,356.86
  6. Step 6: Final answer
    x = 109,901.13

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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.