Home / 217,337.22-299,939.76-121,850.10

Finding the Fourth Proportional to 217,337.22, 299,939.76 and 121,850.10

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Solution

The fourth proportional to 217,337.22, 299,939.76 and 121,850.10 is: 168,161.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,337.22 : 299,939.76 = 121,850.10 : x
  2. Step 2: Convert to fraction form
    217,337.22/299,939.76 = 121,850.10/x
  3. Step 3: Cross multiply
    217,337.22x = 299,939.76 × 121,850.10
  4. Step 4: Simplify right side
    217,337.22x = 36,547,689,749.98
  5. Step 5: Solve for x
    x = 36,547,689,749.98/217,337.22
  6. Step 6: Final answer
    x = 168,161.21

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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.