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Finding the Fourth Proportional to 123,903.20, 185,927.70 and 45,025.40

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Solution

The fourth proportional to 123,903.20, 185,927.70 and 45,025.40 is: 67,564.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,903.20 : 185,927.70 = 45,025.40 : x
  2. Step 2: Convert to fraction form
    123,903.20/185,927.70 = 45,025.40/x
  3. Step 3: Cross multiply
    123,903.20x = 185,927.70 × 45,025.40
  4. Step 4: Simplify right side
    123,903.20x = 8,371,469,063.58
  5. Step 5: Solve for x
    x = 8,371,469,063.58/123,903.20
  6. Step 6: Final answer
    x = 67,564.59

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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.