Home / 144,257.95-199,073.05-87,687.55

Finding the Fourth Proportional to 144,257.95, 199,073.05 and 87,687.55

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Solution

The fourth proportional to 144,257.95, 199,073.05 and 87,687.55 is: 121,007.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,257.95 : 199,073.05 = 87,687.55 : x
  2. Step 2: Convert to fraction form
    144,257.95/199,073.05 = 87,687.55/x
  3. Step 3: Cross multiply
    144,257.95x = 199,073.05 × 87,687.55
  4. Step 4: Simplify right side
    144,257.95x = 17,456,228,025.53
  5. Step 5: Solve for x
    x = 17,456,228,025.53/144,257.95
  6. Step 6: Final answer
    x = 121,007.04

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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.