Home / 121,434.72-167,580.80-67,723.20

Finding the Fourth Proportional to 121,434.72, 167,580.80 and 67,723.20

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Solution

The fourth proportional to 121,434.72, 167,580.80 and 67,723.20 is: 93,458.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,434.72 : 167,580.80 = 67,723.20 : x
  2. Step 2: Convert to fraction form
    121,434.72/167,580.80 = 67,723.20/x
  3. Step 3: Cross multiply
    121,434.72x = 167,580.80 × 67,723.20
  4. Step 4: Simplify right side
    121,434.72x = 11,349,108,034.56
  5. Step 5: Solve for x
    x = 11,349,108,034.56/121,434.72
  6. Step 6: Final answer
    x = 93,458.51

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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.