Home / 154,420.40-231,630.60-54,583.85

Finding the Fourth Proportional to 154,420.40, 231,630.60 and 54,583.85

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Solution

The fourth proportional to 154,420.40, 231,630.60 and 54,583.85 is: 81,875.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,420.40 : 231,630.60 = 54,583.85 : x
  2. Step 2: Convert to fraction form
    154,420.40/231,630.60 = 54,583.85/x
  3. Step 3: Cross multiply
    154,420.40x = 231,630.60 × 54,583.85
  4. Step 4: Simplify right side
    154,420.40x = 12,643,289,925.81
  5. Step 5: Solve for x
    x = 12,643,289,925.81/154,420.40
  6. Step 6: Final answer
    x = 81,875.78

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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.