Home / 154,961.80-232,442.70-91,976.20

Finding the Fourth Proportional to 154,961.80, 232,442.70 and 91,976.20

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Solution

The fourth proportional to 154,961.80, 232,442.70 and 91,976.20 is: 137,964.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,961.80 : 232,442.70 = 91,976.20 : x
  2. Step 2: Convert to fraction form
    154,961.80/232,442.70 = 91,976.20/x
  3. Step 3: Cross multiply
    154,961.80x = 232,442.70 × 91,976.20
  4. Step 4: Simplify right side
    154,961.80x = 21,379,196,263.74
  5. Step 5: Solve for x
    x = 21,379,196,263.74/154,961.80
  6. Step 6: Final answer
    x = 137,964.30

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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.