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Finding the Fourth Proportional to 101,740.68, 140,373.45 and 80,163.53

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Solution

The fourth proportional to 101,740.68, 140,373.45 and 80,163.53 is: 110,603.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,740.68 : 140,373.45 = 80,163.53 : x
  2. Step 2: Convert to fraction form
    101,740.68/140,373.45 = 80,163.53/x
  3. Step 3: Cross multiply
    101,740.68x = 140,373.45 × 80,163.53
  4. Step 4: Simplify right side
    101,740.68x = 11,252,830,568.41
  5. Step 5: Solve for x
    x = 11,252,830,568.41/101,740.68
  6. Step 6: Final answer
    x = 110,603.06

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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.