Home / 217,247.16-299,784.70-121,735.46

Finding the Fourth Proportional to 217,247.16, 299,784.70 and 121,735.46

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Solution

The fourth proportional to 217,247.16, 299,784.70 and 121,735.46 is: 167,985.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,247.16 : 299,784.70 = 121,735.46 : x
  2. Step 2: Convert to fraction form
    217,247.16/299,784.70 = 121,735.46/x
  3. Step 3: Cross multiply
    217,247.16x = 299,784.70 × 121,735.46
  4. Step 4: Simplify right side
    217,247.16x = 36,494,428,355.46
  5. Step 5: Solve for x
    x = 36,494,428,355.46/217,247.16
  6. Step 6: Final answer
    x = 167,985.76

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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.