Home / 140,427.57-193,788.81-76,765.17

Finding the Fourth Proportional to 140,427.57, 193,788.81 and 76,765.17

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Solution

The fourth proportional to 140,427.57, 193,788.81 and 76,765.17 is: 105,935.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,427.57 : 193,788.81 = 76,765.17 : x
  2. Step 2: Convert to fraction form
    140,427.57/193,788.81 = 76,765.17/x
  3. Step 3: Cross multiply
    140,427.57x = 193,788.81 × 76,765.17
  4. Step 4: Simplify right side
    140,427.57x = 14,876,230,943.75
  5. Step 5: Solve for x
    x = 14,876,230,943.75/140,427.57
  6. Step 6: Final answer
    x = 105,935.26

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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.