Home / 132,438.65-182,768.94-72,013.46

Finding the Fourth Proportional to 132,438.65, 182,768.94 and 72,013.46

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Solution

The fourth proportional to 132,438.65, 182,768.94 and 72,013.46 is: 99,380.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,438.65 : 182,768.94 = 72,013.46 : x
  2. Step 2: Convert to fraction form
    132,438.65/182,768.94 = 72,013.46/x
  3. Step 3: Cross multiply
    132,438.65x = 182,768.94 × 72,013.46
  4. Step 4: Simplify right side
    132,438.65x = 13,161,822,836.09
  5. Step 5: Solve for x
    x = 13,161,822,836.09/132,438.65
  6. Step 6: Final answer
    x = 99,380.53

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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.