Home / 138,746.73-191,471.09-75,084.54

Finding the Fourth Proportional to 138,746.73, 191,471.09 and 75,084.54

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Solution

The fourth proportional to 138,746.73, 191,471.09 and 75,084.54 is: 103,616.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,746.73 : 191,471.09 = 75,084.54 : x
  2. Step 2: Convert to fraction form
    138,746.73/191,471.09 = 75,084.54/x
  3. Step 3: Cross multiply
    138,746.73x = 191,471.09 × 75,084.54
  4. Step 4: Simplify right side
    138,746.73x = 14,376,518,715.95
  5. Step 5: Solve for x
    x = 14,376,518,715.95/138,746.73
  6. Step 6: Final answer
    x = 103,616.99

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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.