Home / 203,364.12-280,644.50-112,722.04

Finding the Fourth Proportional to 203,364.12, 280,644.50 and 112,722.04

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Solution

The fourth proportional to 203,364.12, 280,644.50 and 112,722.04 is: 155,557.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,364.12 : 280,644.50 = 112,722.04 : x
  2. Step 2: Convert to fraction form
    203,364.12/280,644.50 = 112,722.04/x
  3. Step 3: Cross multiply
    203,364.12x = 280,644.50 × 112,722.04
  4. Step 4: Simplify right side
    203,364.12x = 31,634,820,554.78
  5. Step 5: Solve for x
    x = 31,634,820,554.78/203,364.12
  6. Step 6: Final answer
    x = 155,557.53

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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.