Home / 217,207.86-299,759.13-121,745.34

Finding the Fourth Proportional to 217,207.86, 299,759.13 and 121,745.34

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Solution

The fourth proportional to 217,207.86, 299,759.13 and 121,745.34 is: 168,015.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,207.86 : 299,759.13 = 121,745.34 : x
  2. Step 2: Convert to fraction form
    217,207.86/299,759.13 = 121,745.34/x
  3. Step 3: Cross multiply
    217,207.86x = 299,759.13 × 121,745.34
  4. Step 4: Simplify right side
    217,207.86x = 36,494,277,199.95
  5. Step 5: Solve for x
    x = 36,494,277,199.95/217,207.86
  6. Step 6: Final answer
    x = 168,015.45

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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.