Home / 85,949.91-129,019.14-68,294.07

Finding the Fourth Proportional to 85,949.91, 129,019.14 and 68,294.07

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Solution

The fourth proportional to 85,949.91, 129,019.14 and 68,294.07 is: 102,516.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,949.91 : 129,019.14 = 68,294.07 : x
  2. Step 2: Convert to fraction form
    85,949.91/129,019.14 = 68,294.07/x
  3. Step 3: Cross multiply
    85,949.91x = 129,019.14 × 68,294.07
  4. Step 4: Simplify right side
    85,949.91x = 8,811,242,178.50
  5. Step 5: Solve for x
    x = 8,811,242,178.50/85,949.91
  6. Step 6: Final answer
    x = 102,516.01

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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.