Home / 138,882.12-191,604.48-102,670.52

Finding the Fourth Proportional to 138,882.12, 191,604.48 and 102,670.52

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Solution

The fourth proportional to 138,882.12, 191,604.48 and 102,670.52 is: 141,646.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,882.12 : 191,604.48 = 102,670.52 : x
  2. Step 2: Convert to fraction form
    138,882.12/191,604.48 = 102,670.52/x
  3. Step 3: Cross multiply
    138,882.12x = 191,604.48 × 102,670.52
  4. Step 4: Simplify right side
    138,882.12x = 19,672,131,595.93
  5. Step 5: Solve for x
    x = 19,672,131,595.93/138,882.12
  6. Step 6: Final answer
    x = 141,646.25

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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.