Home / 154,074.18-231,177.16-74,073.72

Finding the Fourth Proportional to 154,074.18, 231,177.16 and 74,073.72

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Solution

The fourth proportional to 154,074.18, 231,177.16 and 74,073.72 is: 111,142.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,074.18 : 231,177.16 = 74,073.72 : x
  2. Step 2: Convert to fraction form
    154,074.18/231,177.16 = 74,073.72/x
  3. Step 3: Cross multiply
    154,074.18x = 231,177.16 × 74,073.72
  4. Step 4: Simplify right side
    154,074.18x = 17,124,152,220.24
  5. Step 5: Solve for x
    x = 17,124,152,220.24/154,074.18
  6. Step 6: Final answer
    x = 111,142.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.