Home / 204,725.86-307,085.16-86,398.24

Finding the Fourth Proportional to 204,725.86, 307,085.16 and 86,398.24

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Solution

The fourth proportional to 204,725.86, 307,085.16 and 86,398.24 is: 129,595.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,725.86 : 307,085.16 = 86,398.24 : x
  2. Step 2: Convert to fraction form
    204,725.86/307,085.16 = 86,398.24/x
  3. Step 3: Cross multiply
    204,725.86x = 307,085.16 × 86,398.24
  4. Step 4: Simplify right side
    204,725.86x = 26,531,617,354.12
  5. Step 5: Solve for x
    x = 26,531,617,354.12/204,725.86
  6. Step 6: Final answer
    x = 129,595.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.