Home / 121,100.52-167,141.84-80,192.54

Finding the Fourth Proportional to 121,100.52, 167,141.84 and 80,192.54

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Solution

The fourth proportional to 121,100.52, 167,141.84 and 80,192.54 is: 110,681.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,100.52 : 167,141.84 = 80,192.54 : x
  2. Step 2: Convert to fraction form
    121,100.52/167,141.84 = 80,192.54/x
  3. Step 3: Cross multiply
    121,100.52x = 167,141.84 × 80,192.54
  4. Step 4: Simplify right side
    121,100.52x = 13,403,527,453.20
  5. Step 5: Solve for x
    x = 13,403,527,453.20/121,100.52
  6. Step 6: Final answer
    x = 110,681.01

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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.