Home / 217,106.72-299,572.44-121,617.44

Finding the Fourth Proportional to 217,106.72, 299,572.44 and 121,617.44

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Solution

The fourth proportional to 217,106.72, 299,572.44 and 121,617.44 is: 167,812.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,106.72 : 299,572.44 = 121,617.44 : x
  2. Step 2: Convert to fraction form
    217,106.72/299,572.44 = 121,617.44/x
  3. Step 3: Cross multiply
    217,106.72x = 299,572.44 × 121,617.44
  4. Step 4: Simplify right side
    217,106.72x = 36,433,233,247.35
  5. Step 5: Solve for x
    x = 36,433,233,247.35/217,106.72
  6. Step 6: Final answer
    x = 167,812.55

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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.