Home / 127,052.32-175,443.84-79,387.04

Finding the Fourth Proportional to 127,052.32, 175,443.84 and 79,387.04

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Solution

The fourth proportional to 127,052.32, 175,443.84 and 79,387.04 is: 109,623.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,052.32 : 175,443.84 = 79,387.04 : x
  2. Step 2: Convert to fraction form
    127,052.32/175,443.84 = 79,387.04/x
  3. Step 3: Cross multiply
    127,052.32x = 175,443.84 × 79,387.04
  4. Step 4: Simplify right side
    127,052.32x = 13,927,967,143.83
  5. Step 5: Solve for x
    x = 13,927,967,143.83/127,052.32
  6. Step 6: Final answer
    x = 109,623.87

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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.