Home / 217,859.03-300,639.46-121,060.39

Finding the Fourth Proportional to 217,859.03, 300,639.46 and 121,060.39

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Solution

The fourth proportional to 217,859.03, 300,639.46 and 121,060.39 is: 167,059.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,859.03 : 300,639.46 = 121,060.39 : x
  2. Step 2: Convert to fraction form
    217,859.03/300,639.46 = 121,060.39/x
  3. Step 3: Cross multiply
    217,859.03x = 300,639.46 × 121,060.39
  4. Step 4: Simplify right side
    217,859.03x = 36,395,528,168.49
  5. Step 5: Solve for x
    x = 36,395,528,168.49/217,859.03
  6. Step 6: Final answer
    x = 167,059.99

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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.