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Finding the Fourth Proportional to 181,642.12, 250,659.30 and 101,072.68

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Solution

The fourth proportional to 181,642.12, 250,659.30 and 101,072.68 is: 139,476.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,642.12 : 250,659.30 = 101,072.68 : x
  2. Step 2: Convert to fraction form
    181,642.12/250,659.30 = 101,072.68/x
  3. Step 3: Cross multiply
    181,642.12x = 250,659.30 × 101,072.68
  4. Step 4: Simplify right side
    181,642.12x = 25,334,807,217.92
  5. Step 5: Solve for x
    x = 25,334,807,217.92/181,642.12
  6. Step 6: Final answer
    x = 139,476.50

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1.5x scale

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.