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Finding the Fourth Proportional to 89,899.20, 134,589.60 and 89,899.20

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Solution

The fourth proportional to 89,899.20, 134,589.60 and 89,899.20 is: 134,589.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,899.20 : 134,589.60 = 89,899.20 : x
  2. Step 2: Convert to fraction form
    89,899.20/134,589.60 = 89,899.20/x
  3. Step 3: Cross multiply
    89,899.20x = 134,589.60 × 89,899.20
  4. Step 4: Simplify right side
    89,899.20x = 12,099,497,368.32
  5. Step 5: Solve for x
    x = 12,099,497,368.32/89,899.20
  6. Step 6: Final answer
    x = 134,589.60

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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.