Home / 200,103.04-300,155.04-81,774.34

Finding the Fourth Proportional to 200,103.04, 300,155.04 and 81,774.34

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Solution

The fourth proportional to 200,103.04, 300,155.04 and 81,774.34 is: 122,661.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,103.04 : 300,155.04 = 81,774.34 : x
  2. Step 2: Convert to fraction form
    200,103.04/300,155.04 = 81,774.34/x
  3. Step 3: Cross multiply
    200,103.04x = 300,155.04 × 81,774.34
  4. Step 4: Simplify right side
    200,103.04x = 24,544,980,293.67
  5. Step 5: Solve for x
    x = 24,544,980,293.67/200,103.04
  6. Step 6: Final answer
    x = 122,661.71

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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.