Home / 127,359.86-175,757.40-79,641.14

Finding the Fourth Proportional to 127,359.86, 175,757.40 and 79,641.14

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Solution

The fourth proportional to 127,359.86, 175,757.40 and 79,641.14 is: 109,905.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,359.86 : 175,757.40 = 79,641.14 : x
  2. Step 2: Convert to fraction form
    127,359.86/175,757.40 = 79,641.14/x
  3. Step 3: Cross multiply
    127,359.86x = 175,757.40 × 79,641.14
  4. Step 4: Simplify right side
    127,359.86x = 13,997,518,820.65
  5. Step 5: Solve for x
    x = 13,997,518,820.65/127,359.86
  6. Step 6: Final answer
    x = 109,905.27

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1.5x scale

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.