Home / 118,529.20-177,545.40-55,403.20

Finding the Fourth Proportional to 118,529.20, 177,545.40 and 55,403.20

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Solution

The fourth proportional to 118,529.20, 177,545.40 and 55,403.20 is: 82,988.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,529.20 : 177,545.40 = 55,403.20 : x
  2. Step 2: Convert to fraction form
    118,529.20/177,545.40 = 55,403.20/x
  3. Step 3: Cross multiply
    118,529.20x = 177,545.40 × 55,403.20
  4. Step 4: Simplify right side
    118,529.20x = 9,836,583,305.28
  5. Step 5: Solve for x
    x = 9,836,583,305.28/118,529.20
  6. Step 6: Final answer
    x = 82,988.69

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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.