Home / 150,718.92-207,995.40-90,353.04

Finding the Fourth Proportional to 150,718.92, 207,995.40 and 90,353.04

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Solution

The fourth proportional to 150,718.92, 207,995.40 and 90,353.04 is: 124,689.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,718.92 : 207,995.40 = 90,353.04 : x
  2. Step 2: Convert to fraction form
    150,718.92/207,995.40 = 90,353.04/x
  3. Step 3: Cross multiply
    150,718.92x = 207,995.40 × 90,353.04
  4. Step 4: Simplify right side
    150,718.92x = 18,793,016,696.02
  5. Step 5: Solve for x
    x = 18,793,016,696.02/150,718.92
  6. Step 6: Final answer
    x = 124,689.17

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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.