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Finding the Fourth Proportional to 181,061.30, 250,108.08 and 139,143.80

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Solution

The fourth proportional to 181,061.30, 250,108.08 and 139,143.80 is: 192,205.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,061.30 : 250,108.08 = 139,143.80 : x
  2. Step 2: Convert to fraction form
    181,061.30/250,108.08 = 139,143.80/x
  3. Step 3: Cross multiply
    181,061.30x = 250,108.08 × 139,143.80
  4. Step 4: Simplify right side
    181,061.30x = 34,800,988,661.90
  5. Step 5: Solve for x
    x = 34,800,988,661.90/181,061.30
  6. Step 6: Final answer
    x = 192,205.56

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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.