Home / 121,209.35-167,271.61-67,499.37

Finding the Fourth Proportional to 121,209.35, 167,271.61 and 67,499.37

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Solution

The fourth proportional to 121,209.35, 167,271.61 and 67,499.37 is: 93,150.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,209.35 : 167,271.61 = 67,499.37 : x
  2. Step 2: Convert to fraction form
    121,209.35/167,271.61 = 67,499.37/x
  3. Step 3: Cross multiply
    121,209.35x = 167,271.61 × 67,499.37
  4. Step 4: Simplify right side
    121,209.35x = 11,290,728,125.14
  5. Step 5: Solve for x
    x = 11,290,728,125.14/121,209.35
  6. Step 6: Final answer
    x = 93,150.63

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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.