Home / 252,156.20-378,279.02-83,686.60

Finding the Fourth Proportional to 252,156.20, 378,279.02 and 83,686.60

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Solution

The fourth proportional to 252,156.20, 378,279.02 and 83,686.60 is: 125,544.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,156.20 : 378,279.02 = 83,686.60 : x
  2. Step 2: Convert to fraction form
    252,156.20/378,279.02 = 83,686.60/x
  3. Step 3: Cross multiply
    252,156.20x = 378,279.02 × 83,686.60
  4. Step 4: Simplify right side
    252,156.20x = 31,656,885,035.13
  5. Step 5: Solve for x
    x = 31,656,885,035.13/252,156.20
  6. Step 6: Final answer
    x = 125,544.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.