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Finding the Fourth Proportional to 136,841.60, 188,841.48 and 80,253.20

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Solution

The fourth proportional to 136,841.60, 188,841.48 and 80,253.20 is: 110,749.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,841.60 : 188,841.48 = 80,253.20 : x
  2. Step 2: Convert to fraction form
    136,841.60/188,841.48 = 80,253.20/x
  3. Step 3: Cross multiply
    136,841.60x = 188,841.48 × 80,253.20
  4. Step 4: Simplify right side
    136,841.60x = 15,155,133,062.74
  5. Step 5: Solve for x
    x = 15,155,133,062.74/136,841.60
  6. Step 6: Final answer
    x = 110,749.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.