Home / 211,119.52-291,348.08-115,635.12

Finding the Fourth Proportional to 211,119.52, 291,348.08 and 115,635.12

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Solution

The fourth proportional to 211,119.52, 291,348.08 and 115,635.12 is: 159,578.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,119.52 : 291,348.08 = 115,635.12 : x
  2. Step 2: Convert to fraction form
    211,119.52/291,348.08 = 115,635.12/x
  3. Step 3: Cross multiply
    211,119.52x = 291,348.08 × 115,635.12
  4. Step 4: Simplify right side
    211,119.52x = 33,690,070,192.57
  5. Step 5: Solve for x
    x = 33,690,070,192.57/211,119.52
  6. Step 6: Final answer
    x = 159,578.19

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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.