Home / 101,743.18-140,376.90-80,166.01

Finding the Fourth Proportional to 101,743.18, 140,376.90 and 80,166.01

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Solution

The fourth proportional to 101,743.18, 140,376.90 and 80,166.01 is: 110,606.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,743.18 : 140,376.90 = 80,166.01 : x
  2. Step 2: Convert to fraction form
    101,743.18/140,376.90 = 80,166.01/x
  3. Step 3: Cross multiply
    101,743.18x = 140,376.90 × 80,166.01
  4. Step 4: Simplify right side
    101,743.18x = 11,253,455,969.17
  5. Step 5: Solve for x
    x = 11,253,455,969.17/101,743.18
  6. Step 6: Final answer
    x = 110,606.49

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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.