Home / 121,630.62-167,966.19-115,004.10

Finding the Fourth Proportional to 121,630.62, 167,966.19 and 115,004.10

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Solution

The fourth proportional to 121,630.62, 167,966.19 and 115,004.10 is: 158,815.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,630.62 : 167,966.19 = 115,004.10 : x
  2. Step 2: Convert to fraction form
    121,630.62/167,966.19 = 115,004.10/x
  3. Step 3: Cross multiply
    121,630.62x = 167,966.19 × 115,004.10
  4. Step 4: Simplify right side
    121,630.62x = 19,316,800,511.38
  5. Step 5: Solve for x
    x = 19,316,800,511.38/121,630.62
  6. Step 6: Final answer
    x = 158,815.28

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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.