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Finding the Fourth Proportional to 89,355.60, 134,033.40 and 76,233.60

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Solution

The fourth proportional to 89,355.60, 134,033.40 and 76,233.60 is: 114,350.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,355.60 : 134,033.40 = 76,233.60 : x
  2. Step 2: Convert to fraction form
    89,355.60/134,033.40 = 76,233.60/x
  3. Step 3: Cross multiply
    89,355.60x = 134,033.40 × 76,233.60
  4. Step 4: Simplify right side
    89,355.60x = 10,217,848,602.24
  5. Step 5: Solve for x
    x = 10,217,848,602.24/89,355.60
  6. Step 6: Final answer
    x = 114,350.40

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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.