Home / 129,092.40-193,638.75-40,346.37

Finding the Fourth Proportional to 129,092.40, 193,638.75 and 40,346.37

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Solution

The fourth proportional to 129,092.40, 193,638.75 and 40,346.37 is: 60,519.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,092.40 : 193,638.75 = 40,346.37 : x
  2. Step 2: Convert to fraction form
    129,092.40/193,638.75 = 40,346.37/x
  3. Step 3: Cross multiply
    129,092.40x = 193,638.75 × 40,346.37
  4. Step 4: Simplify right side
    129,092.40x = 7,812,620,729.49
  5. Step 5: Solve for x
    x = 7,812,620,729.49/129,092.40
  6. Step 6: Final answer
    x = 60,519.60

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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.