Home / 217,669.12-300,366.92-122,157.36

Finding the Fourth Proportional to 217,669.12, 300,366.92 and 122,157.36

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Solution

The fourth proportional to 217,669.12, 300,366.92 and 122,157.36 is: 168,567.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,669.12 : 300,366.92 = 122,157.36 : x
  2. Step 2: Convert to fraction form
    217,669.12/300,366.92 = 122,157.36/x
  3. Step 3: Cross multiply
    217,669.12x = 300,366.92 × 122,157.36
  4. Step 4: Simplify right side
    217,669.12x = 36,692,029,367.74
  5. Step 5: Solve for x
    x = 36,692,029,367.74/217,669.12
  6. Step 6: Final answer
    x = 168,567.92

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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.