Home / 169,631.55-254,059.80-80,947.35

Finding the Fourth Proportional to 169,631.55, 254,059.80 and 80,947.35

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Solution

The fourth proportional to 169,631.55, 254,059.80 and 80,947.35 is: 121,236.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,631.55 : 254,059.80 = 80,947.35 : x
  2. Step 2: Convert to fraction form
    169,631.55/254,059.80 = 80,947.35/x
  3. Step 3: Cross multiply
    169,631.55x = 254,059.80 × 80,947.35
  4. Step 4: Simplify right side
    169,631.55x = 20,565,467,551.53
  5. Step 5: Solve for x
    x = 20,565,467,551.53/169,631.55
  6. Step 6: Final answer
    x = 121,236.10

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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.