Home / 154,521.12-231,879.18-65,774.48

Finding the Fourth Proportional to 154,521.12, 231,879.18 and 65,774.48

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Solution

The fourth proportional to 154,521.12, 231,879.18 and 65,774.48 is: 98,703.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,521.12 : 231,879.18 = 65,774.48 : x
  2. Step 2: Convert to fraction form
    154,521.12/231,879.18 = 65,774.48/x
  3. Step 3: Cross multiply
    154,521.12x = 231,879.18 × 65,774.48
  4. Step 4: Simplify right side
    154,521.12x = 15,251,732,487.33
  5. Step 5: Solve for x
    x = 15,251,732,487.33/154,521.12
  6. Step 6: Final answer
    x = 98,703.22

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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.