Home / 144,270.08-199,115.20-87,660.80

Finding the Fourth Proportional to 144,270.08, 199,115.20 and 87,660.80

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Solution

The fourth proportional to 144,270.08, 199,115.20 and 87,660.80 is: 120,985.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,270.08 : 199,115.20 = 87,660.80 : x
  2. Step 2: Convert to fraction form
    144,270.08/199,115.20 = 87,660.80/x
  3. Step 3: Cross multiply
    144,270.08x = 199,115.20 × 87,660.80
  4. Step 4: Simplify right side
    144,270.08x = 17,454,597,724.16
  5. Step 5: Solve for x
    x = 17,454,597,724.16/144,270.08
  6. Step 6: Final answer
    x = 120,985.57

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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.