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Finding the Fourth Proportional to 187,648.45, 281,620.60 and 69,353.62

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Solution

The fourth proportional to 187,648.45, 281,620.60 and 69,353.62 is: 104,085.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,648.45 : 281,620.60 = 69,353.62 : x
  2. Step 2: Convert to fraction form
    187,648.45/281,620.60 = 69,353.62/x
  3. Step 3: Cross multiply
    187,648.45x = 281,620.60 × 69,353.62
  4. Step 4: Simplify right side
    187,648.45x = 19,531,406,668.47
  5. Step 5: Solve for x
    x = 19,531,406,668.47/187,648.45
  6. Step 6: Final answer
    x = 104,085.10

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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.