Home / 118,208.20-177,312.30-91,769.80

Finding the Fourth Proportional to 118,208.20, 177,312.30 and 91,769.80

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Solution

The fourth proportional to 118,208.20, 177,312.30 and 91,769.80 is: 137,654.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,208.20 : 177,312.30 = 91,769.80 : x
  2. Step 2: Convert to fraction form
    118,208.20/177,312.30 = 91,769.80/x
  3. Step 3: Cross multiply
    118,208.20x = 177,312.30 × 91,769.80
  4. Step 4: Simplify right side
    118,208.20x = 16,271,914,308.54
  5. Step 5: Solve for x
    x = 16,271,914,308.54/118,208.20
  6. Step 6: Final answer
    x = 137,654.70

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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.