Home / 127,163.28-175,486.05-79,444.35

Finding the Fourth Proportional to 127,163.28, 175,486.05 and 79,444.35

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Solution

The fourth proportional to 127,163.28, 175,486.05 and 79,444.35 is: 109,633.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,163.28 : 175,486.05 = 79,444.35 : x
  2. Step 2: Convert to fraction form
    127,163.28/175,486.05 = 79,444.35/x
  3. Step 3: Cross multiply
    127,163.28x = 175,486.05 × 79,444.35
  4. Step 4: Simplify right side
    127,163.28x = 13,941,375,176.32
  5. Step 5: Solve for x
    x = 13,941,375,176.32/127,163.28
  6. Step 6: Final answer
    x = 109,633.66

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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.