Home / 206,164.81-309,366.15-111,395.26

Finding the Fourth Proportional to 206,164.81, 309,366.15 and 111,395.26

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Solution

The fourth proportional to 206,164.81, 309,366.15 and 111,395.26 is: 167,157.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,164.81 : 309,366.15 = 111,395.26 : x
  2. Step 2: Convert to fraction form
    206,164.81/309,366.15 = 111,395.26/x
  3. Step 3: Cross multiply
    206,164.81x = 309,366.15 × 111,395.26
  4. Step 4: Simplify right side
    206,164.81x = 34,461,922,714.45
  5. Step 5: Solve for x
    x = 34,461,922,714.45/206,164.81
  6. Step 6: Final answer
    x = 167,157.15

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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.