Home / 158,380.28-218,568.32-90,395.92

Finding the Fourth Proportional to 158,380.28, 218,568.32 and 90,395.92

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Solution

The fourth proportional to 158,380.28, 218,568.32 and 90,395.92 is: 124,748.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,380.28 : 218,568.32 = 90,395.92 : x
  2. Step 2: Convert to fraction form
    158,380.28/218,568.32 = 90,395.92/x
  3. Step 3: Cross multiply
    158,380.28x = 218,568.32 × 90,395.92
  4. Step 4: Simplify right side
    158,380.28x = 19,757,684,369.25
  5. Step 5: Solve for x
    x = 19,757,684,369.25/158,380.28
  6. Step 6: Final answer
    x = 124,748.39

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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.