Home / 217,116.72-299,586.24-121,627.44

Finding the Fourth Proportional to 217,116.72, 299,586.24 and 121,627.44

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Solution

The fourth proportional to 217,116.72, 299,586.24 and 121,627.44 is: 167,826.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,116.72 : 299,586.24 = 121,627.44 : x
  2. Step 2: Convert to fraction form
    217,116.72/299,586.24 = 121,627.44/x
  3. Step 3: Cross multiply
    217,116.72x = 299,586.24 × 121,627.44
  4. Step 4: Simplify right side
    217,116.72x = 36,437,907,430.43
  5. Step 5: Solve for x
    x = 36,437,907,430.43/217,116.72
  6. Step 6: Final answer
    x = 167,826.35

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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.