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Finding the Fourth Proportional to 161,197.20, 241,795.80 and 111,430.80

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Solution

The fourth proportional to 161,197.20, 241,795.80 and 111,430.80 is: 167,146.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,197.20 : 241,795.80 = 111,430.80 : x
  2. Step 2: Convert to fraction form
    161,197.20/241,795.80 = 111,430.80/x
  3. Step 3: Cross multiply
    161,197.20x = 241,795.80 × 111,430.80
  4. Step 4: Simplify right side
    161,197.20x = 26,943,499,430.64
  5. Step 5: Solve for x
    x = 26,943,499,430.64/161,197.20
  6. Step 6: Final answer
    x = 167,146.20

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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.