Home / 203,032.76-280,187.68-112,397.10

Finding the Fourth Proportional to 203,032.76, 280,187.68 and 112,397.10

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Solution

The fourth proportional to 203,032.76, 280,187.68 and 112,397.10 is: 155,109.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,032.76 : 280,187.68 = 112,397.10 : x
  2. Step 2: Convert to fraction form
    203,032.76/280,187.68 = 112,397.10/x
  3. Step 3: Cross multiply
    203,032.76x = 280,187.68 × 112,397.10
  4. Step 4: Simplify right side
    203,032.76x = 31,492,282,687.73
  5. Step 5: Solve for x
    x = 31,492,282,687.73/203,032.76
  6. Step 6: Final answer
    x = 155,109.37

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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.