Home / 120,760.62-181,214.64-76,326.18

Finding the Fourth Proportional to 120,760.62, 181,214.64 and 76,326.18

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Solution

The fourth proportional to 120,760.62, 181,214.64 and 76,326.18 is: 114,535.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,760.62 : 181,214.64 = 76,326.18 : x
  2. Step 2: Convert to fraction form
    120,760.62/181,214.64 = 76,326.18/x
  3. Step 3: Cross multiply
    120,760.62x = 181,214.64 × 76,326.18
  4. Step 4: Simplify right side
    120,760.62x = 13,831,421,231.28
  5. Step 5: Solve for x
    x = 13,831,421,231.28/120,760.62
  6. Step 6: Final answer
    x = 114,535.86

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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.