Home / 138,808.95-191,556.13-75,146.73

Finding the Fourth Proportional to 138,808.95, 191,556.13 and 75,146.73

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Solution

The fourth proportional to 138,808.95, 191,556.13 and 75,146.73 is: 103,702.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,808.95 : 191,556.13 = 75,146.73 : x
  2. Step 2: Convert to fraction form
    138,808.95/191,556.13 = 75,146.73/x
  3. Step 3: Cross multiply
    138,808.95x = 191,556.13 × 75,146.73
  4. Step 4: Simplify right side
    138,808.95x = 14,394,816,780.95
  5. Step 5: Solve for x
    x = 14,394,816,780.95/138,808.95
  6. Step 6: Final answer
    x = 103,702.37

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1.5x scale

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.