Home / 123,403.08-185,137.42-39,165.50

Finding the Fourth Proportional to 123,403.08, 185,137.42 and 39,165.50

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Solution

The fourth proportional to 123,403.08, 185,137.42 and 39,165.50 is: 58,758.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,403.08 : 185,137.42 = 39,165.50 : x
  2. Step 2: Convert to fraction form
    123,403.08/185,137.42 = 39,165.50/x
  3. Step 3: Cross multiply
    123,403.08x = 185,137.42 × 39,165.50
  4. Step 4: Simplify right side
    123,403.08x = 7,250,999,623.01
  5. Step 5: Solve for x
    x = 7,250,999,623.01/123,403.08
  6. Step 6: Final answer
    x = 58,758.66

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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.