Home / 127,062.32-175,231.26-79,320.08

Finding the Fourth Proportional to 127,062.32, 175,231.26 and 79,320.08

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Solution

The fourth proportional to 127,062.32, 175,231.26 and 79,320.08 is: 109,390.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,062.32 : 175,231.26 = 79,320.08 : x
  2. Step 2: Convert to fraction form
    127,062.32/175,231.26 = 79,320.08/x
  3. Step 3: Cross multiply
    127,062.32x = 175,231.26 × 79,320.08
  4. Step 4: Simplify right side
    127,062.32x = 13,899,357,561.70
  5. Step 5: Solve for x
    x = 13,899,357,561.70/127,062.32
  6. Step 6: Final answer
    x = 109,390.08

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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.