Home / 154,423.40-231,635.10-54,582.80

Finding the Fourth Proportional to 154,423.40, 231,635.10 and 54,582.80

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Solution

The fourth proportional to 154,423.40, 231,635.10 and 54,582.80 is: 81,874.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,423.40 : 231,635.10 = 54,582.80 : x
  2. Step 2: Convert to fraction form
    154,423.40/231,635.10 = 54,582.80/x
  3. Step 3: Cross multiply
    154,423.40x = 231,635.10 × 54,582.80
  4. Step 4: Simplify right side
    154,423.40x = 12,643,292,336.28
  5. Step 5: Solve for x
    x = 12,643,292,336.28/154,423.40
  6. Step 6: Final answer
    x = 81,874.20

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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.