Home / 154,410.30-231,615.45-54,569.70

Finding the Fourth Proportional to 154,410.30, 231,615.45 and 54,569.70

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Solution

The fourth proportional to 154,410.30, 231,615.45 and 54,569.70 is: 81,854.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,410.30 : 231,615.45 = 54,569.70 : x
  2. Step 2: Convert to fraction form
    154,410.30/231,615.45 = 54,569.70/x
  3. Step 3: Cross multiply
    154,410.30x = 231,615.45 × 54,569.70
  4. Step 4: Simplify right side
    154,410.30x = 12,639,185,621.87
  5. Step 5: Solve for x
    x = 12,639,185,621.87/154,410.30
  6. Step 6: Final answer
    x = 81,854.55

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1.5x scale

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.