Home / 217,176.35-299,703.16-121,683.72

Finding the Fourth Proportional to 217,176.35, 299,703.16 and 121,683.72

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Solution

The fourth proportional to 217,176.35, 299,703.16 and 121,683.72 is: 167,923.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,176.35 : 299,703.16 = 121,683.72 : x
  2. Step 2: Convert to fraction form
    217,176.35/299,703.16 = 121,683.72/x
  3. Step 3: Cross multiply
    217,176.35x = 299,703.16 × 121,683.72
  4. Step 4: Simplify right side
    217,176.35x = 36,468,995,996.08
  5. Step 5: Solve for x
    x = 36,468,995,996.08/217,176.35
  6. Step 6: Final answer
    x = 167,923.43

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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.