Home / 112,735.92-155,500.71-72,500.59

Finding the Fourth Proportional to 112,735.92, 155,500.71 and 72,500.59

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Solution

The fourth proportional to 112,735.92, 155,500.71 and 72,500.59 is: 100,002.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,735.92 : 155,500.71 = 72,500.59 : x
  2. Step 2: Convert to fraction form
    112,735.92/155,500.71 = 72,500.59/x
  3. Step 3: Cross multiply
    112,735.92x = 155,500.71 × 72,500.59
  4. Step 4: Simplify right side
    112,735.92x = 11,273,893,220.42
  5. Step 5: Solve for x
    x = 11,273,893,220.42/112,735.92
  6. Step 6: Final answer
    x = 100,002.67

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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.