Home / 124,961.70-187,442.55-112,908.90

Finding the Fourth Proportional to 124,961.70, 187,442.55 and 112,908.90

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Solution

The fourth proportional to 124,961.70, 187,442.55 and 112,908.90 is: 169,363.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,961.70 : 187,442.55 = 112,908.90 : x
  2. Step 2: Convert to fraction form
    124,961.70/187,442.55 = 112,908.90/x
  3. Step 3: Cross multiply
    124,961.70x = 187,442.55 × 112,908.90
  4. Step 4: Simplify right side
    124,961.70x = 21,163,932,133.70
  5. Step 5: Solve for x
    x = 21,163,932,133.70/124,961.70
  6. Step 6: Final answer
    x = 169,363.35

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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.