Home / 138,948.01-191,747.74-75,285.97

Finding the Fourth Proportional to 138,948.01, 191,747.74 and 75,285.97

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Solution

The fourth proportional to 138,948.01, 191,747.74 and 75,285.97 is: 103,894.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,948.01 : 191,747.74 = 75,285.97 : x
  2. Step 2: Convert to fraction form
    138,948.01/191,747.74 = 75,285.97/x
  3. Step 3: Cross multiply
    138,948.01x = 191,747.74 × 75,285.97
  4. Step 4: Simplify right side
    138,948.01x = 14,435,914,601.21
  5. Step 5: Solve for x
    x = 14,435,914,601.21/138,948.01
  6. Step 6: Final answer
    x = 103,894.36

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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.