Home / 212,419.89-293,105.15-121,759.17

Finding the Fourth Proportional to 212,419.89, 293,105.15 and 121,759.17

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Solution

The fourth proportional to 212,419.89, 293,105.15 and 121,759.17 is: 168,007.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,419.89 : 293,105.15 = 121,759.17 : x
  2. Step 2: Convert to fraction form
    212,419.89/293,105.15 = 121,759.17/x
  3. Step 3: Cross multiply
    212,419.89x = 293,105.15 × 121,759.17
  4. Step 4: Simplify right side
    212,419.89x = 35,688,239,177.93
  5. Step 5: Solve for x
    x = 35,688,239,177.93/212,419.89
  6. Step 6: Final answer
    x = 168,007.99

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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.