Home / 123,367.08-185,107.90-39,140.52

Finding the Fourth Proportional to 123,367.08, 185,107.90 and 39,140.52

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Solution

The fourth proportional to 123,367.08, 185,107.90 and 39,140.52 is: 58,728.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,367.08 : 185,107.90 = 39,140.52 : x
  2. Step 2: Convert to fraction form
    123,367.08/185,107.90 = 39,140.52/x
  3. Step 3: Cross multiply
    123,367.08x = 185,107.90 × 39,140.52
  4. Step 4: Simplify right side
    123,367.08x = 7,245,219,462.11
  5. Step 5: Solve for x
    x = 7,245,219,462.11/123,367.08
  6. Step 6: Final answer
    x = 58,728.95

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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.