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Finding the Fourth Proportional to 145,334.42, 200,540.29 and 80,798.48

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Solution

The fourth proportional to 145,334.42, 200,540.29 and 80,798.48 is: 111,490.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,334.42 : 200,540.29 = 80,798.48 : x
  2. Step 2: Convert to fraction form
    145,334.42/200,540.29 = 80,798.48/x
  3. Step 3: Cross multiply
    145,334.42x = 200,540.29 × 80,798.48
  4. Step 4: Simplify right side
    145,334.42x = 16,203,350,610.76
  5. Step 5: Solve for x
    x = 16,203,350,610.76/145,334.42
  6. Step 6: Final answer
    x = 111,490.11

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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.