Home / 158,356.42-218,535.39-90,372.04

Finding the Fourth Proportional to 158,356.42, 218,535.39 and 90,372.04

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Solution

The fourth proportional to 158,356.42, 218,535.39 and 90,372.04 is: 124,715.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,356.42 : 218,535.39 = 90,372.04 : x
  2. Step 2: Convert to fraction form
    158,356.42/218,535.39 = 90,372.04/x
  3. Step 3: Cross multiply
    158,356.42x = 218,535.39 × 90,372.04
  4. Step 4: Simplify right side
    158,356.42x = 19,749,489,006.50
  5. Step 5: Solve for x
    x = 19,749,489,006.50/158,356.42
  6. Step 6: Final answer
    x = 124,715.43

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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.