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Finding the Fourth Proportional to 181,910.34, 272,894.67 and 76,744.80

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Solution

The fourth proportional to 181,910.34, 272,894.67 and 76,744.80 is: 115,129.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,910.34 : 272,894.67 = 76,744.80 : x
  2. Step 2: Convert to fraction form
    181,910.34/272,894.67 = 76,744.80/x
  3. Step 3: Cross multiply
    181,910.34x = 272,894.67 × 76,744.80
  4. Step 4: Simplify right side
    181,910.34x = 20,943,246,870.22
  5. Step 5: Solve for x
    x = 20,943,246,870.22/181,910.34
  6. Step 6: Final answer
    x = 115,129.50

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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.