Home / 161,074.10-222,393.46-100,671.90

Finding the Fourth Proportional to 161,074.10, 222,393.46 and 100,671.90

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Solution

The fourth proportional to 161,074.10, 222,393.46 and 100,671.90 is: 138,996.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,074.10 : 222,393.46 = 100,671.90 : x
  2. Step 2: Convert to fraction form
    161,074.10/222,393.46 = 100,671.90/x
  3. Step 3: Cross multiply
    161,074.10x = 222,393.46 × 100,671.90
  4. Step 4: Simplify right side
    161,074.10x = 22,388,772,165.77
  5. Step 5: Solve for x
    x = 22,388,772,165.77/161,074.10
  6. Step 6: Final answer
    x = 138,996.72

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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.