Home / 155,601.30-214,711.97-87,616.59

Finding the Fourth Proportional to 155,601.30, 214,711.97 and 87,616.59

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Solution

The fourth proportional to 155,601.30, 214,711.97 and 87,616.59 is: 120,900.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,601.30 : 214,711.97 = 87,616.59 : x
  2. Step 2: Convert to fraction form
    155,601.30/214,711.97 = 87,616.59/x
  3. Step 3: Cross multiply
    155,601.30x = 214,711.97 × 87,616.59
  4. Step 4: Simplify right side
    155,601.30x = 18,812,329,400.33
  5. Step 5: Solve for x
    x = 18,812,329,400.33/155,601.30
  6. Step 6: Final answer
    x = 120,900.85

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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.