Home / 132,658.05-183,072.60-72,231.04

Finding the Fourth Proportional to 132,658.05, 183,072.60 and 72,231.04

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Solution

The fourth proportional to 132,658.05, 183,072.60 and 72,231.04 is: 99,681.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,658.05 : 183,072.60 = 72,231.04 : x
  2. Step 2: Convert to fraction form
    132,658.05/183,072.60 = 72,231.04/x
  3. Step 3: Cross multiply
    132,658.05x = 183,072.60 × 72,231.04
  4. Step 4: Simplify right side
    132,658.05x = 13,223,524,293.50
  5. Step 5: Solve for x
    x = 13,223,524,293.50/132,658.05
  6. Step 6: Final answer
    x = 99,681.28

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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.