Home / 112,735.77-155,500.44-72,500.43

Finding the Fourth Proportional to 112,735.77, 155,500.44 and 72,500.43

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Solution

The fourth proportional to 112,735.77, 155,500.44 and 72,500.43 is: 100,002.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,735.77 : 155,500.44 = 72,500.43 : x
  2. Step 2: Convert to fraction form
    112,735.77/155,500.44 = 72,500.43/x
  3. Step 3: Cross multiply
    112,735.77x = 155,500.44 × 72,500.43
  4. Step 4: Simplify right side
    112,735.77x = 11,273,848,765.19
  5. Step 5: Solve for x
    x = 11,273,848,765.19/112,735.77
  6. Step 6: Final answer
    x = 100,002.41

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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.