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Finding the Fourth Proportional to 130,404.35, 179,962.42 and 73,046.12

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Solution

The fourth proportional to 130,404.35, 179,962.42 and 73,046.12 is: 100,806.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,404.35 : 179,962.42 = 73,046.12 : x
  2. Step 2: Convert to fraction form
    130,404.35/179,962.42 = 73,046.12/x
  3. Step 3: Cross multiply
    130,404.35x = 179,962.42 × 73,046.12
  4. Step 4: Simplify right side
    130,404.35x = 13,145,555,444.38
  5. Step 5: Solve for x
    x = 13,145,555,444.38/130,404.35
  6. Step 6: Final answer
    x = 100,806.12

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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.