Home / 155,320.50-214,338.02-87,335.73

Finding the Fourth Proportional to 155,320.50, 214,338.02 and 87,335.73

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Solution

The fourth proportional to 155,320.50, 214,338.02 and 87,335.73 is: 120,520.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,320.50 : 214,338.02 = 87,335.73 : x
  2. Step 2: Convert to fraction form
    155,320.50/214,338.02 = 87,335.73/x
  3. Step 3: Cross multiply
    155,320.50x = 214,338.02 × 87,335.73
  4. Step 4: Simplify right side
    155,320.50x = 18,719,367,006.78
  5. Step 5: Solve for x
    x = 18,719,367,006.78/155,320.50
  6. Step 6: Final answer
    x = 120,520.90

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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.