Home / 94,995.20-141,720.32-81,056

Finding the Fourth Proportional to 94,995.20, 141,720.32 and 81,056

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Solution

The fourth proportional to 94,995.20, 141,720.32 and 81,056 is: 120,924.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,995.20 : 141,720.32 = 81,056 : x
  2. Step 2: Convert to fraction form
    94,995.20/141,720.32 = 81,056/x
  3. Step 3: Cross multiply
    94,995.20x = 141,720.32 × 81,056
  4. Step 4: Simplify right side
    94,995.20x = 11,487,282,257.92
  5. Step 5: Solve for x
    x = 11,487,282,257.92/94,995.20
  6. Step 6: Final answer
    x = 120,924.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.