Home / 121,212.47-181,618.22-61,966.64

Finding the Fourth Proportional to 121,212.47, 181,618.22 and 61,966.64

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Solution

The fourth proportional to 121,212.47, 181,618.22 and 61,966.64 is: 92,847.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,212.47 : 181,618.22 = 61,966.64 : x
  2. Step 2: Convert to fraction form
    121,212.47/181,618.22 = 61,966.64/x
  3. Step 3: Cross multiply
    121,212.47x = 181,618.22 × 61,966.64
  4. Step 4: Simplify right side
    121,212.47x = 11,254,270,103.01
  5. Step 5: Solve for x
    x = 11,254,270,103.01/121,212.47
  6. Step 6: Final answer
    x = 92,847.47

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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.