Home / 89,962.20-134,856.90-69,960.60

Finding the Fourth Proportional to 89,962.20, 134,856.90 and 69,960.60

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Solution

The fourth proportional to 89,962.20, 134,856.90 and 69,960.60 is: 104,873.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,962.20 : 134,856.90 = 69,960.60 : x
  2. Step 2: Convert to fraction form
    89,962.20/134,856.90 = 69,960.60/x
  3. Step 3: Cross multiply
    89,962.20x = 134,856.90 × 69,960.60
  4. Step 4: Simplify right side
    89,962.20x = 9,434,669,638.14
  5. Step 5: Solve for x
    x = 9,434,669,638.14/89,962.20
  6. Step 6: Final answer
    x = 104,873.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.