Home / 154,411.80-231,636.36-54,551.55

Finding the Fourth Proportional to 154,411.80, 231,636.36 and 54,551.55

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Solution

The fourth proportional to 154,411.80, 231,636.36 and 54,551.55 is: 81,833.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,411.80 : 231,636.36 = 54,551.55 : x
  2. Step 2: Convert to fraction form
    154,411.80/231,636.36 = 54,551.55/x
  3. Step 3: Cross multiply
    154,411.80x = 231,636.36 × 54,551.55
  4. Step 4: Simplify right side
    154,411.80x = 12,636,122,474.36
  5. Step 5: Solve for x
    x = 12,636,122,474.36/154,411.80
  6. Step 6: Final answer
    x = 81,833.92

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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.