Home / 217,246.17-299,811.56-121,783.53

Finding the Fourth Proportional to 217,246.17, 299,811.56 and 121,783.53

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Solution

The fourth proportional to 217,246.17, 299,811.56 and 121,783.53 is: 168,067.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,246.17 : 299,811.56 = 121,783.53 : x
  2. Step 2: Convert to fraction form
    217,246.17/299,811.56 = 121,783.53/x
  3. Step 3: Cross multiply
    217,246.17x = 299,811.56 × 121,783.53
  4. Step 4: Simplify right side
    217,246.17x = 36,512,109,502.69
  5. Step 5: Solve for x
    x = 36,512,109,502.69/217,246.17
  6. Step 6: Final answer
    x = 168,067.91

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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.