Home / 202,313.57-279,175.04-129,588.15

Finding the Fourth Proportional to 202,313.57, 279,175.04 and 129,588.15

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Solution

The fourth proportional to 202,313.57, 279,175.04 and 129,588.15 is: 178,820.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,313.57 : 279,175.04 = 129,588.15 : x
  2. Step 2: Convert to fraction form
    202,313.57/279,175.04 = 129,588.15/x
  3. Step 3: Cross multiply
    202,313.57x = 279,175.04 × 129,588.15
  4. Step 4: Simplify right side
    202,313.57x = 36,177,777,844.70
  5. Step 5: Solve for x
    x = 36,177,777,844.70/202,313.57
  6. Step 6: Final answer
    x = 178,820.33

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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.