Home / 217,037.79-299,514.23-120,243.69

Finding the Fourth Proportional to 217,037.79, 299,514.23 and 120,243.69

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Solution

The fourth proportional to 217,037.79, 299,514.23 and 120,243.69 is: 165,937.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,037.79 : 299,514.23 = 120,243.69 : x
  2. Step 2: Convert to fraction form
    217,037.79/299,514.23 = 120,243.69/x
  3. Step 3: Cross multiply
    217,037.79x = 299,514.23 × 120,243.69
  4. Step 4: Simplify right side
    217,037.79x = 36,014,695,621.49
  5. Step 5: Solve for x
    x = 36,014,695,621.49/217,037.79
  6. Step 6: Final answer
    x = 165,937.44

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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.