Home / 154,146.07-231,061.50-87,445.30

Finding the Fourth Proportional to 154,146.07, 231,061.50 and 87,445.30

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Solution

The fourth proportional to 154,146.07, 231,061.50 and 87,445.30 is: 131,078.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,146.07 : 231,061.50 = 87,445.30 : x
  2. Step 2: Convert to fraction form
    154,146.07/231,061.50 = 87,445.30/x
  3. Step 3: Cross multiply
    154,146.07x = 231,061.50 × 87,445.30
  4. Step 4: Simplify right side
    154,146.07x = 20,205,242,185.95
  5. Step 5: Solve for x
    x = 20,205,242,185.95/154,146.07
  6. Step 6: Final answer
    x = 131,078.54

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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.