Home / 133,799.12-184,613.88-77,177.69

Finding the Fourth Proportional to 133,799.12, 184,613.88 and 77,177.69

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Solution

The fourth proportional to 133,799.12, 184,613.88 and 77,177.69 is: 106,488.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,799.12 : 184,613.88 = 77,177.69 : x
  2. Step 2: Convert to fraction form
    133,799.12/184,613.88 = 77,177.69/x
  3. Step 3: Cross multiply
    133,799.12x = 184,613.88 × 77,177.69
  4. Step 4: Simplify right side
    133,799.12x = 14,248,072,800.34
  5. Step 5: Solve for x
    x = 14,248,072,800.34/133,799.12
  6. Step 6: Final answer
    x = 106,488.54

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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.