Home / 203,426.03-280,744.56-112,810.42

Finding the Fourth Proportional to 203,426.03, 280,744.56 and 112,810.42

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Solution

The fourth proportional to 203,426.03, 280,744.56 and 112,810.42 is: 155,687.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,426.03 : 280,744.56 = 112,810.42 : x
  2. Step 2: Convert to fraction form
    203,426.03/280,744.56 = 112,810.42/x
  3. Step 3: Cross multiply
    203,426.03x = 280,744.56 × 112,810.42
  4. Step 4: Simplify right side
    203,426.03x = 31,670,913,026.68
  5. Step 5: Solve for x
    x = 31,670,913,026.68/203,426.03
  6. Step 6: Final answer
    x = 155,687.61

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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.