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Finding the Fourth Proportional to 137,519.60, 205,890.60 and 133,631.60

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Solution

The fourth proportional to 137,519.60, 205,890.60 and 133,631.60 is: 200,069.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,519.60 : 205,890.60 = 133,631.60 : x
  2. Step 2: Convert to fraction form
    137,519.60/205,890.60 = 133,631.60/x
  3. Step 3: Cross multiply
    137,519.60x = 205,890.60 × 133,631.60
  4. Step 4: Simplify right side
    137,519.60x = 27,513,490,302.96
  5. Step 5: Solve for x
    x = 27,513,490,302.96/137,519.60
  6. Step 6: Final answer
    x = 200,069.59

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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.