Home / 138,761.22-191,490.54-75,099.06

Finding the Fourth Proportional to 138,761.22, 191,490.54 and 75,099.06

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Solution

The fourth proportional to 138,761.22, 191,490.54 and 75,099.06 is: 103,636.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,761.22 : 191,490.54 = 75,099.06 : x
  2. Step 2: Convert to fraction form
    138,761.22/191,490.54 = 75,099.06/x
  3. Step 3: Cross multiply
    138,761.22x = 191,490.54 × 75,099.06
  4. Step 4: Simplify right side
    138,761.22x = 14,380,759,552.89
  5. Step 5: Solve for x
    x = 14,380,759,552.89/138,761.22
  6. Step 6: Final answer
    x = 103,636.73

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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.