Home / 145,874.28-201,229.36-100,474.18

Finding the Fourth Proportional to 145,874.28, 201,229.36 and 100,474.18

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Solution

The fourth proportional to 145,874.28, 201,229.36 and 100,474.18 is: 138,601.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,874.28 : 201,229.36 = 100,474.18 : x
  2. Step 2: Convert to fraction form
    145,874.28/201,229.36 = 100,474.18/x
  3. Step 3: Cross multiply
    145,874.28x = 201,229.36 × 100,474.18
  4. Step 4: Simplify right side
    145,874.28x = 20,218,354,937.92
  5. Step 5: Solve for x
    x = 20,218,354,937.92/145,874.28
  6. Step 6: Final answer
    x = 138,601.23

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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.