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Finding the Fourth Proportional to 132,374.85, 182,678.69 and 71,945.49

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Solution

The fourth proportional to 132,374.85, 182,678.69 and 71,945.49 is: 99,285.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,374.85 : 182,678.69 = 71,945.49 : x
  2. Step 2: Convert to fraction form
    132,374.85/182,678.69 = 71,945.49/x
  3. Step 3: Cross multiply
    132,374.85x = 182,678.69 × 71,945.49
  4. Step 4: Simplify right side
    132,374.85x = 13,142,907,864.61
  5. Step 5: Solve for x
    x = 13,142,907,864.61/132,374.85
  6. Step 6: Final answer
    x = 99,285.54

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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.