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Finding the Fourth Proportional to 181,238.85, 250,102.71 and 100,671.57

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Solution

The fourth proportional to 181,238.85, 250,102.71 and 100,671.57 is: 138,922.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,238.85 : 250,102.71 = 100,671.57 : x
  2. Step 2: Convert to fraction form
    181,238.85/250,102.71 = 100,671.57/x
  3. Step 3: Cross multiply
    181,238.85x = 250,102.71 × 100,671.57
  4. Step 4: Simplify right side
    181,238.85x = 25,178,232,476.95
  5. Step 5: Solve for x
    x = 25,178,232,476.95/181,238.85
  6. Step 6: Final answer
    x = 138,922.93

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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.