Home / 217,328.97-299,928.38-121,841.85

Finding the Fourth Proportional to 217,328.97, 299,928.38 and 121,841.85

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Solution

The fourth proportional to 217,328.97, 299,928.38 and 121,841.85 is: 168,149.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,328.97 : 299,928.38 = 121,841.85 : x
  2. Step 2: Convert to fraction form
    217,328.97/299,928.38 = 121,841.85/x
  3. Step 3: Cross multiply
    217,328.97x = 299,928.38 × 121,841.85
  4. Step 4: Simplify right side
    217,328.97x = 36,543,828,077.49
  5. Step 5: Solve for x
    x = 36,543,828,077.49/217,328.97
  6. Step 6: Final answer
    x = 168,149.82

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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.