Home / 154,069.20-231,341.40-84,085.20

Finding the Fourth Proportional to 154,069.20, 231,341.40 and 84,085.20

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Solution

The fourth proportional to 154,069.20, 231,341.40 and 84,085.20 is: 126,257.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,069.20 : 231,341.40 = 84,085.20 : x
  2. Step 2: Convert to fraction form
    154,069.20/231,341.40 = 84,085.20/x
  3. Step 3: Cross multiply
    154,069.20x = 231,341.40 × 84,085.20
  4. Step 4: Simplify right side
    154,069.20x = 19,452,387,887.28
  5. Step 5: Solve for x
    x = 19,452,387,887.28/154,069.20
  6. Step 6: Final answer
    x = 126,257.47

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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.