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Finding the Fourth Proportional to 134,573.70, 185,669.67 and 80,870.70

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Solution

The fourth proportional to 134,573.70, 185,669.67 and 80,870.70 is: 111,576.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,573.70 : 185,669.67 = 80,870.70 : x
  2. Step 2: Convert to fraction form
    134,573.70/185,669.67 = 80,870.70/x
  3. Step 3: Cross multiply
    134,573.70x = 185,669.67 × 80,870.70
  4. Step 4: Simplify right side
    134,573.70x = 15,015,236,181.67
  5. Step 5: Solve for x
    x = 15,015,236,181.67/134,573.70
  6. Step 6: Final answer
    x = 111,576.30

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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.