Home / 129,015.94-193,424.55-40,216.90

Finding the Fourth Proportional to 129,015.94, 193,424.55 and 40,216.90

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Solution

The fourth proportional to 129,015.94, 193,424.55 and 40,216.90 is: 60,294.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,015.94 : 193,424.55 = 40,216.90 : x
  2. Step 2: Convert to fraction form
    129,015.94/193,424.55 = 40,216.90/x
  3. Step 3: Cross multiply
    129,015.94x = 193,424.55 × 40,216.90
  4. Step 4: Simplify right side
    129,015.94x = 7,778,935,784.90
  5. Step 5: Solve for x
    x = 7,778,935,784.90/129,015.94
  6. Step 6: Final answer
    x = 60,294.38

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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.