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Finding the Fourth Proportional to 121,569.40, 182,135.40 and 104,073.40

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Solution

The fourth proportional to 121,569.40, 182,135.40 and 104,073.40 is: 155,922.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,569.40 : 182,135.40 = 104,073.40 : x
  2. Step 2: Convert to fraction form
    121,569.40/182,135.40 = 104,073.40/x
  3. Step 3: Cross multiply
    121,569.40x = 182,135.40 × 104,073.40
  4. Step 4: Simplify right side
    121,569.40x = 18,955,450,338.36
  5. Step 5: Solve for x
    x = 18,955,450,338.36/121,569.40
  6. Step 6: Final answer
    x = 155,922.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.