Home / 203,023.04-280,147.10-112,373.49

Finding the Fourth Proportional to 203,023.04, 280,147.10 and 112,373.49

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Solution

The fourth proportional to 203,023.04, 280,147.10 and 112,373.49 is: 155,061.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,023.04 : 280,147.10 = 112,373.49 : x
  2. Step 2: Convert to fraction form
    203,023.04/280,147.10 = 112,373.49/x
  3. Step 3: Cross multiply
    203,023.04x = 280,147.10 × 112,373.49
  4. Step 4: Simplify right side
    203,023.04x = 31,481,107,621.31
  5. Step 5: Solve for x
    x = 31,481,107,621.31/203,023.04
  6. Step 6: Final answer
    x = 155,061.75

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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.