Home / 217,319.76-299,898.45-121,825.62

Finding the Fourth Proportional to 217,319.76, 299,898.45 and 121,825.62

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Solution

The fourth proportional to 217,319.76, 299,898.45 and 121,825.62 is: 168,117.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,319.76 : 299,898.45 = 121,825.62 : x
  2. Step 2: Convert to fraction form
    217,319.76/299,898.45 = 121,825.62/x
  3. Step 3: Cross multiply
    217,319.76x = 299,898.45 × 121,825.62
  4. Step 4: Simplify right side
    217,319.76x = 36,535,314,608.29
  5. Step 5: Solve for x
    x = 36,535,314,608.29/217,319.76
  6. Step 6: Final answer
    x = 168,117.78

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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.