Home / 123,552.70-185,329.05-81,489.40

Finding the Fourth Proportional to 123,552.70, 185,329.05 and 81,489.40

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Solution

The fourth proportional to 123,552.70, 185,329.05 and 81,489.40 is: 122,234.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,552.70 : 185,329.05 = 81,489.40 : x
  2. Step 2: Convert to fraction form
    123,552.70/185,329.05 = 81,489.40/x
  3. Step 3: Cross multiply
    123,552.70x = 185,329.05 × 81,489.40
  4. Step 4: Simplify right side
    123,552.70x = 15,102,353,087.07
  5. Step 5: Solve for x
    x = 15,102,353,087.07/123,552.70
  6. Step 6: Final answer
    x = 122,234.10

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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.