Home / 154,235.20-231,352.80-112,763.20

Finding the Fourth Proportional to 154,235.20, 231,352.80 and 112,763.20

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Solution

The fourth proportional to 154,235.20, 231,352.80 and 112,763.20 is: 169,144.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,235.20 : 231,352.80 = 112,763.20 : x
  2. Step 2: Convert to fraction form
    154,235.20/231,352.80 = 112,763.20/x
  3. Step 3: Cross multiply
    154,235.20x = 231,352.80 × 112,763.20
  4. Step 4: Simplify right side
    154,235.20x = 26,088,082,056.96
  5. Step 5: Solve for x
    x = 26,088,082,056.96/154,235.20
  6. Step 6: Final answer
    x = 169,144.80

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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.