Home / 136,824.70-188,849.56-80,254.30

Finding the Fourth Proportional to 136,824.70, 188,849.56 and 80,254.30

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Solution

The fourth proportional to 136,824.70, 188,849.56 and 80,254.30 is: 110,769.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,824.70 : 188,849.56 = 80,254.30 : x
  2. Step 2: Convert to fraction form
    136,824.70/188,849.56 = 80,254.30/x
  3. Step 3: Cross multiply
    136,824.70x = 188,849.56 × 80,254.30
  4. Step 4: Simplify right side
    136,824.70x = 15,155,989,243.11
  5. Step 5: Solve for x
    x = 15,155,989,243.11/136,824.70
  6. Step 6: Final answer
    x = 110,769.40

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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.