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Finding the Fourth Proportional to 161,980.74, 243,044.96 and 83,150.37

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Solution

The fourth proportional to 161,980.74, 243,044.96 and 83,150.37 is: 124,763.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,980.74 : 243,044.96 = 83,150.37 : x
  2. Step 2: Convert to fraction form
    161,980.74/243,044.96 = 83,150.37/x
  3. Step 3: Cross multiply
    161,980.74x = 243,044.96 × 83,150.37
  4. Step 4: Simplify right side
    161,980.74x = 20,209,278,350.64
  5. Step 5: Solve for x
    x = 20,209,278,350.64/161,980.74
  6. Step 6: Final answer
    x = 124,763.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.