Home / 129,166.30-193,749.45-99,641.80

Finding the Fourth Proportional to 129,166.30, 193,749.45 and 99,641.80

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Solution

The fourth proportional to 129,166.30, 193,749.45 and 99,641.80 is: 149,462.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,166.30 : 193,749.45 = 99,641.80 : x
  2. Step 2: Convert to fraction form
    129,166.30/193,749.45 = 99,641.80/x
  3. Step 3: Cross multiply
    129,166.30x = 193,749.45 × 99,641.80
  4. Step 4: Simplify right side
    129,166.30x = 19,305,543,947.01
  5. Step 5: Solve for x
    x = 19,305,543,947.01/129,166.30
  6. Step 6: Final answer
    x = 149,462.70

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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.