Home / 153,834.68-212,311.19-89,290.03

Finding the Fourth Proportional to 153,834.68, 212,311.19 and 89,290.03

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Solution

The fourth proportional to 153,834.68, 212,311.19 and 89,290.03 is: 123,231.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,834.68 : 212,311.19 = 89,290.03 : x
  2. Step 2: Convert to fraction form
    153,834.68/212,311.19 = 89,290.03/x
  3. Step 3: Cross multiply
    153,834.68x = 212,311.19 × 89,290.03
  4. Step 4: Simplify right side
    153,834.68x = 18,957,272,524.44
  5. Step 5: Solve for x
    x = 18,957,272,524.44/153,834.68
  6. Step 6: Final answer
    x = 123,231.46

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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.