Home / 133,083.15-183,855.06-87,251.69

Finding the Fourth Proportional to 133,083.15, 183,855.06 and 87,251.69

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Solution

The fourth proportional to 133,083.15, 183,855.06 and 87,251.69 is: 120,538.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,083.15 : 183,855.06 = 87,251.69 : x
  2. Step 2: Convert to fraction form
    133,083.15/183,855.06 = 87,251.69/x
  3. Step 3: Cross multiply
    133,083.15x = 183,855.06 × 87,251.69
  4. Step 4: Simplify right side
    133,083.15x = 16,041,663,780.78
  5. Step 5: Solve for x
    x = 16,041,663,780.78/133,083.15
  6. Step 6: Final answer
    x = 120,538.65

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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.