Home / 121,147.65-167,183.76-67,431.51

Finding the Fourth Proportional to 121,147.65, 167,183.76 and 67,431.51

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Solution

The fourth proportional to 121,147.65, 167,183.76 and 67,431.51 is: 93,055.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,147.65 : 167,183.76 = 67,431.51 : x
  2. Step 2: Convert to fraction form
    121,147.65/167,183.76 = 67,431.51/x
  3. Step 3: Cross multiply
    121,147.65x = 167,183.76 × 67,431.51
  4. Step 4: Simplify right side
    121,147.65x = 11,273,453,384.28
  5. Step 5: Solve for x
    x = 11,273,453,384.28/121,147.65
  6. Step 6: Final answer
    x = 93,055.49

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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.