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Finding the Fourth Proportional to 101,163.56, 139,605.72 and 55,841.55

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Solution

The fourth proportional to 101,163.56, 139,605.72 and 55,841.55 is: 77,061.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,163.56 : 139,605.72 = 55,841.55 : x
  2. Step 2: Convert to fraction form
    101,163.56/139,605.72 = 55,841.55/x
  3. Step 3: Cross multiply
    101,163.56x = 139,605.72 × 55,841.55
  4. Step 4: Simplify right side
    101,163.56x = 7,795,799,793.67
  5. Step 5: Solve for x
    x = 7,795,799,793.67/101,163.56
  6. Step 6: Final answer
    x = 77,061.34

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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.