Home / 89,099.08-133,736.10-66,966.64

Finding the Fourth Proportional to 89,099.08, 133,736.10 and 66,966.64

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Solution

The fourth proportional to 89,099.08, 133,736.10 and 66,966.64 is: 100,515.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,099.08 : 133,736.10 = 66,966.64 : x
  2. Step 2: Convert to fraction form
    89,099.08/133,736.10 = 66,966.64/x
  3. Step 3: Cross multiply
    89,099.08x = 133,736.10 × 66,966.64
  4. Step 4: Simplify right side
    89,099.08x = 8,955,857,263.70
  5. Step 5: Solve for x
    x = 8,955,857,263.70/89,099.08
  6. Step 6: Final answer
    x = 100,515.71

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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.