Home / 127,340.56-175,731.02-79,621.57

Finding the Fourth Proportional to 127,340.56, 175,731.02 and 79,621.57

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Solution

The fourth proportional to 127,340.56, 175,731.02 and 79,621.57 is: 109,878.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,340.56 : 175,731.02 = 79,621.57 : x
  2. Step 2: Convert to fraction form
    127,340.56/175,731.02 = 79,621.57/x
  3. Step 3: Cross multiply
    127,340.56x = 175,731.02 × 79,621.57
  4. Step 4: Simplify right side
    127,340.56x = 13,991,979,710.10
  5. Step 5: Solve for x
    x = 13,991,979,710.10/127,340.56
  6. Step 6: Final answer
    x = 109,878.42

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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.