Home / 121,563.42-167,625.27-79,043.10

Finding the Fourth Proportional to 121,563.42, 167,625.27 and 79,043.10

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Solution

The fourth proportional to 121,563.42, 167,625.27 and 79,043.10 is: 108,993.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,563.42 : 167,625.27 = 79,043.10 : x
  2. Step 2: Convert to fraction form
    121,563.42/167,625.27 = 79,043.10/x
  3. Step 3: Cross multiply
    121,563.42x = 167,625.27 × 79,043.10
  4. Step 4: Simplify right side
    121,563.42x = 13,249,620,979.14
  5. Step 5: Solve for x
    x = 13,249,620,979.14/121,563.42
  6. Step 6: Final answer
    x = 108,993.49

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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.