Home / 121,117.05-167,134.68-67,399.47

Finding the Fourth Proportional to 121,117.05, 167,134.68 and 67,399.47

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Solution

The fourth proportional to 121,117.05, 167,134.68 and 67,399.47 is: 93,007.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,117.05 : 167,134.68 = 67,399.47 : x
  2. Step 2: Convert to fraction form
    121,117.05/167,134.68 = 67,399.47/x
  3. Step 3: Cross multiply
    121,117.05x = 167,134.68 × 67,399.47
  4. Step 4: Simplify right side
    121,117.05x = 11,264,788,850.62
  5. Step 5: Solve for x
    x = 11,264,788,850.62/121,117.05
  6. Step 6: Final answer
    x = 93,007.46

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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.