Home / 121,155.30-181,719.12-32,415.65

Finding the Fourth Proportional to 121,155.30, 181,719.12 and 32,415.65

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Solution

The fourth proportional to 121,155.30, 181,719.12 and 32,415.65 is: 48,619.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,155.30 : 181,719.12 = 32,415.65 : x
  2. Step 2: Convert to fraction form
    121,155.30/181,719.12 = 32,415.65/x
  3. Step 3: Cross multiply
    121,155.30x = 181,719.12 × 32,415.65
  4. Step 4: Simplify right side
    121,155.30x = 5,890,542,775.55
  5. Step 5: Solve for x
    x = 5,890,542,775.55/121,155.30
  6. Step 6: Final answer
    x = 48,619.77

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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.