Home / 121,149.81-167,183.96-67,431.51

Finding the Fourth Proportional to 121,149.81, 167,183.96 and 67,431.51

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Solution

The fourth proportional to 121,149.81, 167,183.96 and 67,431.51 is: 93,053.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,149.81 : 167,183.96 = 67,431.51 : x
  2. Step 2: Convert to fraction form
    121,149.81/167,183.96 = 67,431.51/x
  3. Step 3: Cross multiply
    121,149.81x = 167,183.96 × 67,431.51
  4. Step 4: Simplify right side
    121,149.81x = 11,273,466,533.42
  5. Step 5: Solve for x
    x = 11,273,466,533.42/121,149.81
  6. Step 6: Final answer
    x = 93,053.93

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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.