Home / 138,947.01-191,746.36-75,284.97

Finding the Fourth Proportional to 138,947.01, 191,746.36 and 75,284.97

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Solution

The fourth proportional to 138,947.01, 191,746.36 and 75,284.97 is: 103,892.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,947.01 : 191,746.36 = 75,284.97 : x
  2. Step 2: Convert to fraction form
    138,947.01/191,746.36 = 75,284.97/x
  3. Step 3: Cross multiply
    138,947.01x = 191,746.36 × 75,284.97
  4. Step 4: Simplify right side
    138,947.01x = 14,435,618,960.21
  5. Step 5: Solve for x
    x = 14,435,618,960.21/138,947.01
  6. Step 6: Final answer
    x = 103,892.98

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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.