Home / 138,823.76-191,575.98-75,160.19

Finding the Fourth Proportional to 138,823.76, 191,575.98 and 75,160.19

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Solution

The fourth proportional to 138,823.76, 191,575.98 and 75,160.19 is: 103,720.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,823.76 : 191,575.98 = 75,160.19 : x
  2. Step 2: Convert to fraction form
    138,823.76/191,575.98 = 75,160.19/x
  3. Step 3: Cross multiply
    138,823.76x = 191,575.98 × 75,160.19
  4. Step 4: Simplify right side
    138,823.76x = 14,398,886,098.36
  5. Step 5: Solve for x
    x = 14,398,886,098.36/138,823.76
  6. Step 6: Final answer
    x = 103,720.62

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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.