Home / 154,339.26-231,355.62-87,641.34

Finding the Fourth Proportional to 154,339.26, 231,355.62 and 87,641.34

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Solution

The fourth proportional to 154,339.26, 231,355.62 and 87,641.34 is: 131,374.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,339.26 : 231,355.62 = 87,641.34 : x
  2. Step 2: Convert to fraction form
    154,339.26/231,355.62 = 87,641.34/x
  3. Step 3: Cross multiply
    154,339.26x = 231,355.62 × 87,641.34
  4. Step 4: Simplify right side
    154,339.26x = 20,276,316,553.33
  5. Step 5: Solve for x
    x = 20,276,316,553.33/154,339.26
  6. Step 6: Final answer
    x = 131,374.98

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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.