Home / 127,451.18-175,832.85-72,974.24

Finding the Fourth Proportional to 127,451.18, 175,832.85 and 72,974.24

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Solution

The fourth proportional to 127,451.18, 175,832.85 and 72,974.24 is: 100,675.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,451.18 : 175,832.85 = 72,974.24 : x
  2. Step 2: Convert to fraction form
    127,451.18/175,832.85 = 72,974.24/x
  3. Step 3: Cross multiply
    127,451.18x = 175,832.85 × 72,974.24
  4. Step 4: Simplify right side
    127,451.18x = 12,831,268,649.65
  5. Step 5: Solve for x
    x = 12,831,268,649.65/127,451.18
  6. Step 6: Final answer
    x = 100,675.95

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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.