Home / 154,023.80-230,787.30-87,265.40

Finding the Fourth Proportional to 154,023.80, 230,787.30 and 87,265.40

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Solution

The fourth proportional to 154,023.80, 230,787.30 and 87,265.40 is: 130,757.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,023.80 : 230,787.30 = 87,265.40 : x
  2. Step 2: Convert to fraction form
    154,023.80/230,787.30 = 87,265.40/x
  3. Step 3: Cross multiply
    154,023.80x = 230,787.30 × 87,265.40
  4. Step 4: Simplify right side
    154,023.80x = 20,139,746,049.42
  5. Step 5: Solve for x
    x = 20,139,746,049.42/154,023.80
  6. Step 6: Final answer
    x = 130,757.36

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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.