Home / 154,295.12-231,438.20-49,120.40

Finding the Fourth Proportional to 154,295.12, 231,438.20 and 49,120.40

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Solution

The fourth proportional to 154,295.12, 231,438.20 and 49,120.40 is: 73,679.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,295.12 : 231,438.20 = 49,120.40 : x
  2. Step 2: Convert to fraction form
    154,295.12/231,438.20 = 49,120.40/x
  3. Step 3: Cross multiply
    154,295.12x = 231,438.20 × 49,120.40
  4. Step 4: Simplify right side
    154,295.12x = 11,368,336,959.28
  5. Step 5: Solve for x
    x = 11,368,336,959.28/154,295.12
  6. Step 6: Final answer
    x = 73,679.17

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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.