Home / 132,939.03-183,458.03-72,509.66

Finding the Fourth Proportional to 132,939.03, 183,458.03 and 72,509.66

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Solution

The fourth proportional to 132,939.03, 183,458.03 and 72,509.66 is: 100,064.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,939.03 : 183,458.03 = 72,509.66 : x
  2. Step 2: Convert to fraction form
    132,939.03/183,458.03 = 72,509.66/x
  3. Step 3: Cross multiply
    132,939.03x = 183,458.03 × 72,509.66
  4. Step 4: Simplify right side
    132,939.03x = 13,302,479,711.54
  5. Step 5: Solve for x
    x = 13,302,479,711.54/132,939.03
  6. Step 6: Final answer
    x = 100,064.51

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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.