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Finding the Fourth Proportional to 187,647.95, 281,619.85 and 69,353.12

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Solution

The fourth proportional to 187,647.95, 281,619.85 and 69,353.12 is: 104,084.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,647.95 : 281,619.85 = 69,353.12 : x
  2. Step 2: Convert to fraction form
    187,647.95/281,619.85 = 69,353.12/x
  3. Step 3: Cross multiply
    187,647.95x = 281,619.85 × 69,353.12
  4. Step 4: Simplify right side
    187,647.95x = 19,531,214,328.02
  5. Step 5: Solve for x
    x = 19,531,214,328.02/187,647.95
  6. Step 6: Final answer
    x = 104,084.35

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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.