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Finding the Fourth Proportional to 187,745.80, 281,699.70 and 108,927.40

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Solution

The fourth proportional to 187,745.80, 281,699.70 and 108,927.40 is: 163,438.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,745.80 : 281,699.70 = 108,927.40 : x
  2. Step 2: Convert to fraction form
    187,745.80/281,699.70 = 108,927.40/x
  3. Step 3: Cross multiply
    187,745.80x = 281,699.70 × 108,927.40
  4. Step 4: Simplify right side
    187,745.80x = 30,684,815,901.78
  5. Step 5: Solve for x
    x = 30,684,815,901.78/187,745.80
  6. Step 6: Final answer
    x = 163,438.10

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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.