Home / 121,130.93-167,166.19-67,419.38

Finding the Fourth Proportional to 121,130.93, 167,166.19 and 67,419.38

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Solution

The fourth proportional to 121,130.93, 167,166.19 and 67,419.38 is: 93,041.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,130.93 : 167,166.19 = 67,419.38 : x
  2. Step 2: Convert to fraction form
    121,130.93/167,166.19 = 67,419.38/x
  3. Step 3: Cross multiply
    121,130.93x = 167,166.19 × 67,419.38
  4. Step 4: Simplify right side
    121,130.93x = 11,270,241,388.95
  5. Step 5: Solve for x
    x = 11,270,241,388.95/121,130.93
  6. Step 6: Final answer
    x = 93,041.81

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1.5x scale

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.