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Finding the Fourth Proportional to 118,200.60, 177,300.90 and 115,867.80

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Solution

The fourth proportional to 118,200.60, 177,300.90 and 115,867.80 is: 173,801.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,200.60 : 177,300.90 = 115,867.80 : x
  2. Step 2: Convert to fraction form
    118,200.60/177,300.90 = 115,867.80/x
  3. Step 3: Cross multiply
    118,200.60x = 177,300.90 × 115,867.80
  4. Step 4: Simplify right side
    118,200.60x = 20,543,465,221.02
  5. Step 5: Solve for x
    x = 20,543,465,221.02/118,200.60
  6. Step 6: Final answer
    x = 173,801.70

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1.5x scale

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.