Home / 121,247.64-181,900.71-38,141.64

Finding the Fourth Proportional to 121,247.64, 181,900.71 and 38,141.64

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Solution

The fourth proportional to 121,247.64, 181,900.71 and 38,141.64 is: 57,221.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,247.64 : 181,900.71 = 38,141.64 : x
  2. Step 2: Convert to fraction form
    121,247.64/181,900.71 = 38,141.64/x
  3. Step 3: Cross multiply
    121,247.64x = 181,900.71 × 38,141.64
  4. Step 4: Simplify right side
    121,247.64x = 6,937,991,396.56
  5. Step 5: Solve for x
    x = 6,937,991,396.56/121,247.64
  6. Step 6: Final answer
    x = 57,221.66

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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.