Home / 203,600.54-281,002.47-112,985.61

Finding the Fourth Proportional to 203,600.54, 281,002.47 and 112,985.61

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Solution

The fourth proportional to 203,600.54, 281,002.47 and 112,985.61 is: 155,938.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,600.54 : 281,002.47 = 112,985.61 : x
  2. Step 2: Convert to fraction form
    203,600.54/281,002.47 = 112,985.61/x
  3. Step 3: Cross multiply
    203,600.54x = 281,002.47 × 112,985.61
  4. Step 4: Simplify right side
    203,600.54x = 31,749,235,484.46
  5. Step 5: Solve for x
    x = 31,749,235,484.46/203,600.54
  6. Step 6: Final answer
    x = 155,938.86

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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.