Home / 154,128.20-231,134.70-60,614.60

Finding the Fourth Proportional to 154,128.20, 231,134.70 and 60,614.60

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Solution

The fourth proportional to 154,128.20, 231,134.70 and 60,614.60 is: 90,899.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,128.20 : 231,134.70 = 60,614.60 : x
  2. Step 2: Convert to fraction form
    154,128.20/231,134.70 = 60,614.60/x
  3. Step 3: Cross multiply
    154,128.20x = 231,134.70 × 60,614.60
  4. Step 4: Simplify right side
    154,128.20x = 14,010,137,386.62
  5. Step 5: Solve for x
    x = 14,010,137,386.62/154,128.20
  6. Step 6: Final answer
    x = 90,899.25

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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.