Home / 212,420.27-293,105.66-121,759.55

Finding the Fourth Proportional to 212,420.27, 293,105.66 and 121,759.55

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Solution

The fourth proportional to 212,420.27, 293,105.66 and 121,759.55 is: 168,008.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,420.27 : 293,105.66 = 121,759.55 : x
  2. Step 2: Convert to fraction form
    212,420.27/293,105.66 = 121,759.55/x
  3. Step 3: Cross multiply
    212,420.27x = 293,105.66 × 121,759.55
  4. Step 4: Simplify right side
    212,420.27x = 35,688,412,102.92
  5. Step 5: Solve for x
    x = 35,688,412,102.92/212,420.27
  6. Step 6: Final answer
    x = 168,008.51

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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.