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Finding the Fourth Proportional to 102,576.66, 153,871.47 and 43,404.54

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Solution

The fourth proportional to 102,576.66, 153,871.47 and 43,404.54 is: 65,109.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,576.66 : 153,871.47 = 43,404.54 : x
  2. Step 2: Convert to fraction form
    102,576.66/153,871.47 = 43,404.54/x
  3. Step 3: Cross multiply
    102,576.66x = 153,871.47 × 43,404.54
  4. Step 4: Simplify right side
    102,576.66x = 6,678,720,374.47
  5. Step 5: Solve for x
    x = 6,678,720,374.47/102,576.66
  6. Step 6: Final answer
    x = 65,109.55

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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.