Home / 112,850.28-155,659.32-72,500.40

Finding the Fourth Proportional to 112,850.28, 155,659.32 and 72,500.40

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Solution

The fourth proportional to 112,850.28, 155,659.32 and 72,500.40 is: 100,002.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,850.28 : 155,659.32 = 72,500.40 : x
  2. Step 2: Convert to fraction form
    112,850.28/155,659.32 = 72,500.40/x
  3. Step 3: Cross multiply
    112,850.28x = 155,659.32 × 72,500.40
  4. Step 4: Simplify right side
    112,850.28x = 11,285,362,963.73
  5. Step 5: Solve for x
    x = 11,285,362,963.73/112,850.28
  6. Step 6: Final answer
    x = 100,002.97

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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.