Home / 165,038.20-247,557.30-105,940.60

Finding the Fourth Proportional to 165,038.20, 247,557.30 and 105,940.60

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Solution

The fourth proportional to 165,038.20, 247,557.30 and 105,940.60 is: 158,910.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,038.20 : 247,557.30 = 105,940.60 : x
  2. Step 2: Convert to fraction form
    165,038.20/247,557.30 = 105,940.60/x
  3. Step 3: Cross multiply
    165,038.20x = 247,557.30 × 105,940.60
  4. Step 4: Simplify right side
    165,038.20x = 26,226,368,896.38
  5. Step 5: Solve for x
    x = 26,226,368,896.38/165,038.20
  6. Step 6: Final answer
    x = 158,910.90

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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.