Home / 118,747.20-177,872.40-55,621.20

Finding the Fourth Proportional to 118,747.20, 177,872.40 and 55,621.20

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Solution

The fourth proportional to 118,747.20, 177,872.40 and 55,621.20 is: 83,315.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,747.20 : 177,872.40 = 55,621.20 : x
  2. Step 2: Convert to fraction form
    118,747.20/177,872.40 = 55,621.20/x
  3. Step 3: Cross multiply
    118,747.20x = 177,872.40 × 55,621.20
  4. Step 4: Simplify right side
    118,747.20x = 9,893,476,334.88
  5. Step 5: Solve for x
    x = 9,893,476,334.88/118,747.20
  6. Step 6: Final answer
    x = 83,315.45

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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.