Home / 149,217.79-205,913.84-81,233.03

Finding the Fourth Proportional to 149,217.79, 205,913.84 and 81,233.03

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Solution

The fourth proportional to 149,217.79, 205,913.84 and 81,233.03 is: 112,097.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,217.79 : 205,913.84 = 81,233.03 : x
  2. Step 2: Convert to fraction form
    149,217.79/205,913.84 = 81,233.03/x
  3. Step 3: Cross multiply
    149,217.79x = 205,913.84 × 81,233.03
  4. Step 4: Simplify right side
    149,217.79x = 16,727,005,142.14
  5. Step 5: Solve for x
    x = 16,727,005,142.14/149,217.79
  6. Step 6: Final answer
    x = 112,097.93

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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.