Home / 121,559.13-167,677.02-80,725.01

Finding the Fourth Proportional to 121,559.13, 167,677.02 and 80,725.01

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Solution

The fourth proportional to 121,559.13, 167,677.02 and 80,725.01 is: 111,350.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,559.13 : 167,677.02 = 80,725.01 : x
  2. Step 2: Convert to fraction form
    121,559.13/167,677.02 = 80,725.01/x
  3. Step 3: Cross multiply
    121,559.13x = 167,677.02 × 80,725.01
  4. Step 4: Simplify right side
    121,559.13x = 13,535,728,277.89
  5. Step 5: Solve for x
    x = 13,535,728,277.89/121,559.13
  6. Step 6: Final answer
    x = 111,350.98

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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.