Home / 203,142.04-280,153.56-131,447.32

Finding the Fourth Proportional to 203,142.04, 280,153.56 and 131,447.32

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Solution

The fourth proportional to 203,142.04, 280,153.56 and 131,447.32 is: 181,279.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,142.04 : 280,153.56 = 131,447.32 : x
  2. Step 2: Convert to fraction form
    203,142.04/280,153.56 = 131,447.32/x
  3. Step 3: Cross multiply
    203,142.04x = 280,153.56 × 131,447.32
  4. Step 4: Simplify right side
    203,142.04x = 36,825,434,650.46
  5. Step 5: Solve for x
    x = 36,825,434,650.46/203,142.04
  6. Step 6: Final answer
    x = 181,279.24

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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.