Home / 120,919.40-181,314.30-50,719.40

Finding the Fourth Proportional to 120,919.40, 181,314.30 and 50,719.40

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Solution

The fourth proportional to 120,919.40, 181,314.30 and 50,719.40 is: 76,051.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,919.40 : 181,314.30 = 50,719.40 : x
  2. Step 2: Convert to fraction form
    120,919.40/181,314.30 = 50,719.40/x
  3. Step 3: Cross multiply
    120,919.40x = 181,314.30 × 50,719.40
  4. Step 4: Simplify right side
    120,919.40x = 9,196,152,507.42
  5. Step 5: Solve for x
    x = 9,196,152,507.42/120,919.40
  6. Step 6: Final answer
    x = 76,051.92

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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.