Home / 154,964.10-232,340.03-78,915.43

Finding the Fourth Proportional to 154,964.10, 232,340.03 and 78,915.43

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Solution

The fourth proportional to 154,964.10, 232,340.03 and 78,915.43 is: 118,319.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,964.10 : 232,340.03 = 78,915.43 : x
  2. Step 2: Convert to fraction form
    154,964.10/232,340.03 = 78,915.43/x
  3. Step 3: Cross multiply
    154,964.10x = 232,340.03 × 78,915.43
  4. Step 4: Simplify right side
    154,964.10x = 18,335,212,990.10
  5. Step 5: Solve for x
    x = 18,335,212,990.10/154,964.10
  6. Step 6: Final answer
    x = 118,319.10

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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.