Home / 112,372.22-155,073.66-64,624.55

Finding the Fourth Proportional to 112,372.22, 155,073.66 and 64,624.55

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Solution

The fourth proportional to 112,372.22, 155,073.66 and 64,624.55 is: 89,181.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,372.22 : 155,073.66 = 64,624.55 : x
  2. Step 2: Convert to fraction form
    112,372.22/155,073.66 = 64,624.55/x
  3. Step 3: Cross multiply
    112,372.22x = 155,073.66 × 64,624.55
  4. Step 4: Simplify right side
    112,372.22x = 10,021,564,718.98
  5. Step 5: Solve for x
    x = 10,021,564,718.98/112,372.22
  6. Step 6: Final answer
    x = 89,181.87

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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.