Home / 154,426.40-231,639.60-54,585.80

Finding the Fourth Proportional to 154,426.40, 231,639.60 and 54,585.80

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Solution

The fourth proportional to 154,426.40, 231,639.60 and 54,585.80 is: 81,878.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,426.40 : 231,639.60 = 54,585.80 : x
  2. Step 2: Convert to fraction form
    154,426.40/231,639.60 = 54,585.80/x
  3. Step 3: Cross multiply
    154,426.40x = 231,639.60 × 54,585.80
  4. Step 4: Simplify right side
    154,426.40x = 12,644,232,877.68
  5. Step 5: Solve for x
    x = 12,644,232,877.68/154,426.40
  6. Step 6: Final answer
    x = 81,878.70

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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.