Home / 121,350.96-167,465.10-67,639.38

Finding the Fourth Proportional to 121,350.96, 167,465.10 and 67,639.38

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Solution

The fourth proportional to 121,350.96, 167,465.10 and 67,639.38 is: 93,342.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,350.96 : 167,465.10 = 67,639.38 : x
  2. Step 2: Convert to fraction form
    121,350.96/167,465.10 = 67,639.38/x
  3. Step 3: Cross multiply
    121,350.96x = 167,465.10 × 67,639.38
  4. Step 4: Simplify right side
    121,350.96x = 11,327,235,535.64
  5. Step 5: Solve for x
    x = 11,327,235,535.64/121,350.96
  6. Step 6: Final answer
    x = 93,342.78

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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.