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Finding the Fourth Proportional to 181,103.40, 271,460.70 and 68,740.20

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Solution

The fourth proportional to 181,103.40, 271,460.70 and 68,740.20 is: 103,036.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,103.40 : 271,460.70 = 68,740.20 : x
  2. Step 2: Convert to fraction form
    181,103.40/271,460.70 = 68,740.20/x
  3. Step 3: Cross multiply
    181,103.40x = 271,460.70 × 68,740.20
  4. Step 4: Simplify right side
    181,103.40x = 18,660,262,810.14
  5. Step 5: Solve for x
    x = 18,660,262,810.14/181,103.40
  6. Step 6: Final answer
    x = 103,036.51

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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.