Home / 127,102.10-175,328.02-79,272.42

Finding the Fourth Proportional to 127,102.10, 175,328.02 and 79,272.42

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Solution

The fourth proportional to 127,102.10, 175,328.02 and 79,272.42 is: 109,350.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,102.10 : 175,328.02 = 79,272.42 : x
  2. Step 2: Convert to fraction form
    127,102.10/175,328.02 = 79,272.42/x
  3. Step 3: Cross multiply
    127,102.10x = 175,328.02 × 79,272.42
  4. Step 4: Simplify right side
    127,102.10x = 13,898,676,439.21
  5. Step 5: Solve for x
    x = 13,898,676,439.21/127,102.10
  6. Step 6: Final answer
    x = 109,350.49

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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.