Home / 199,850.22-275,662.71-128,116.62

Finding the Fourth Proportional to 199,850.22, 275,662.71 and 128,116.62

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Solution

The fourth proportional to 199,850.22, 275,662.71 and 128,116.62 is: 176,717.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,850.22 : 275,662.71 = 128,116.62 : x
  2. Step 2: Convert to fraction form
    199,850.22/275,662.71 = 128,116.62/x
  3. Step 3: Cross multiply
    199,850.22x = 275,662.71 × 128,116.62
  4. Step 4: Simplify right side
    199,850.22x = 35,316,974,665.24
  5. Step 5: Solve for x
    x = 35,316,974,665.24/199,850.22
  6. Step 6: Final answer
    x = 176,717.22

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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.