Home / 115,344.16-159,163.68-66,938.56

Finding the Fourth Proportional to 115,344.16, 159,163.68 and 66,938.56

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Solution

The fourth proportional to 115,344.16, 159,163.68 and 66,938.56 is: 92,368.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,344.16 : 159,163.68 = 66,938.56 : x
  2. Step 2: Convert to fraction form
    115,344.16/159,163.68 = 66,938.56/x
  3. Step 3: Cross multiply
    115,344.16x = 159,163.68 × 66,938.56
  4. Step 4: Simplify right side
    115,344.16x = 10,654,187,543.50
  5. Step 5: Solve for x
    x = 10,654,187,543.50/115,344.16
  6. Step 6: Final answer
    x = 92,368.68

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1.5x scale

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.