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Finding the Fourth Proportional to 130,841.44, 180,560.67 and 73,472.78

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Solution

The fourth proportional to 130,841.44, 180,560.67 and 73,472.78 is: 101,392.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,841.44 : 180,560.67 = 73,472.78 : x
  2. Step 2: Convert to fraction form
    130,841.44/180,560.67 = 73,472.78/x
  3. Step 3: Cross multiply
    130,841.44x = 180,560.67 × 73,472.78
  4. Step 4: Simplify right side
    130,841.44x = 13,266,294,383.56
  5. Step 5: Solve for x
    x = 13,266,294,383.56/130,841.44
  6. Step 6: Final answer
    x = 101,392.15

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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.