Home / 118,579.20-177,003.12-103,632

Finding the Fourth Proportional to 118,579.20, 177,003.12 and 103,632

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Solution

The fourth proportional to 118,579.20, 177,003.12 and 103,632 is: 154,691.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,579.20 : 177,003.12 = 103,632 : x
  2. Step 2: Convert to fraction form
    118,579.20/177,003.12 = 103,632/x
  3. Step 3: Cross multiply
    118,579.20x = 177,003.12 × 103,632
  4. Step 4: Simplify right side
    118,579.20x = 18,343,187,331.84
  5. Step 5: Solve for x
    x = 18,343,187,331.84/118,579.20
  6. Step 6: Final answer
    x = 154,691.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.