Home / 206,143.36-309,220.08-116,758.24

Finding the Fourth Proportional to 206,143.36, 309,220.08 and 116,758.24

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Solution

The fourth proportional to 206,143.36, 309,220.08 and 116,758.24 is: 175,140.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,143.36 : 309,220.08 = 116,758.24 : x
  2. Step 2: Convert to fraction form
    206,143.36/309,220.08 = 116,758.24/x
  3. Step 3: Cross multiply
    206,143.36x = 309,220.08 × 116,758.24
  4. Step 4: Simplify right side
    206,143.36x = 36,103,992,313.46
  5. Step 5: Solve for x
    x = 36,103,992,313.46/206,143.36
  6. Step 6: Final answer
    x = 175,140.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.