Home / 132,009.40-182,054.82-103,665.88

Finding the Fourth Proportional to 132,009.40, 182,054.82 and 103,665.88

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Solution

The fourth proportional to 132,009.40, 182,054.82 and 103,665.88 is: 142,966.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,009.40 : 182,054.82 = 103,665.88 : x
  2. Step 2: Convert to fraction form
    132,009.40/182,054.82 = 103,665.88/x
  3. Step 3: Cross multiply
    132,009.40x = 182,054.82 × 103,665.88
  4. Step 4: Simplify right side
    132,009.40x = 18,872,873,123.54
  5. Step 5: Solve for x
    x = 18,872,873,123.54/132,009.40
  6. Step 6: Final answer
    x = 142,966.13

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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.