Home / 138,922.16-191,712.56-75,259.94

Finding the Fourth Proportional to 138,922.16, 191,712.56 and 75,259.94

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Solution

The fourth proportional to 138,922.16, 191,712.56 and 75,259.94 is: 103,858.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,922.16 : 191,712.56 = 75,259.94 : x
  2. Step 2: Convert to fraction form
    138,922.16/191,712.56 = 75,259.94/x
  3. Step 3: Cross multiply
    138,922.16x = 191,712.56 × 75,259.94
  4. Step 4: Simplify right side
    138,922.16x = 14,428,274,427.98
  5. Step 5: Solve for x
    x = 14,428,274,427.98/138,922.16
  6. Step 6: Final answer
    x = 103,858.70

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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.