Home / 121,216.68-181,734.30-83,669.54

Finding the Fourth Proportional to 121,216.68, 181,734.30 and 83,669.54

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Solution

The fourth proportional to 121,216.68, 181,734.30 and 83,669.54 is: 125,441.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,216.68 : 181,734.30 = 83,669.54 : x
  2. Step 2: Convert to fraction form
    121,216.68/181,734.30 = 83,669.54/x
  3. Step 3: Cross multiply
    121,216.68x = 181,734.30 × 83,669.54
  4. Step 4: Simplify right side
    121,216.68x = 15,205,624,374.55
  5. Step 5: Solve for x
    x = 15,205,624,374.55/121,216.68
  6. Step 6: Final answer
    x = 125,441.68

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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.