Home / 154,494.80-231,569.40-87,966.80

Finding the Fourth Proportional to 154,494.80, 231,569.40 and 87,966.80

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Solution

The fourth proportional to 154,494.80, 231,569.40 and 87,966.80 is: 131,851.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,494.80 : 231,569.40 = 87,966.80 : x
  2. Step 2: Convert to fraction form
    154,494.80/231,569.40 = 87,966.80/x
  3. Step 3: Cross multiply
    154,494.80x = 231,569.40 × 87,966.80
  4. Step 4: Simplify right side
    154,494.80x = 20,370,419,095.92
  5. Step 5: Solve for x
    x = 20,370,419,095.92/154,494.80
  6. Step 6: Final answer
    x = 131,851.81

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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.