Home / 131,353.66-181,269.21-74,768.68

Finding the Fourth Proportional to 131,353.66, 181,269.21 and 74,768.68

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Solution

The fourth proportional to 131,353.66, 181,269.21 and 74,768.68 is: 103,181.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,353.66 : 181,269.21 = 74,768.68 : x
  2. Step 2: Convert to fraction form
    131,353.66/181,269.21 = 74,768.68/x
  3. Step 3: Cross multiply
    131,353.66x = 181,269.21 × 74,768.68
  4. Step 4: Simplify right side
    131,353.66x = 13,553,259,556.34
  5. Step 5: Solve for x
    x = 13,553,259,556.34/131,353.66
  6. Step 6: Final answer
    x = 103,181.44

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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.