Home / 203,027.90-280,175.11-112,381.92

Finding the Fourth Proportional to 203,027.90, 280,175.11 and 112,381.92

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Solution

The fourth proportional to 203,027.90, 280,175.11 and 112,381.92 is: 155,085.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,027.90 : 280,175.11 = 112,381.92 : x
  2. Step 2: Convert to fraction form
    203,027.90/280,175.11 = 112,381.92/x
  3. Step 3: Cross multiply
    203,027.90x = 280,175.11 × 112,381.92
  4. Step 4: Simplify right side
    203,027.90x = 31,486,617,288.71
  5. Step 5: Solve for x
    x = 31,486,617,288.71/203,027.90
  6. Step 6: Final answer
    x = 155,085.17

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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.