Home / 252,155.20-378,277.52-83,685.60

Finding the Fourth Proportional to 252,155.20, 378,277.52 and 83,685.60

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Solution

The fourth proportional to 252,155.20, 378,277.52 and 83,685.60 is: 125,543.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,155.20 : 378,277.52 = 83,685.60 : x
  2. Step 2: Convert to fraction form
    252,155.20/378,277.52 = 83,685.60/x
  3. Step 3: Cross multiply
    252,155.20x = 378,277.52 × 83,685.60
  4. Step 4: Simplify right side
    252,155.20x = 31,656,381,227.71
  5. Step 5: Solve for x
    x = 31,656,381,227.71/252,155.20
  6. Step 6: Final answer
    x = 125,543.24

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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.