Home / 123,354.14-185,054.58-39,135.50

Finding the Fourth Proportional to 123,354.14, 185,054.58 and 39,135.50

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Solution

The fourth proportional to 123,354.14, 185,054.58 and 39,135.50 is: 58,710.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,354.14 : 185,054.58 = 39,135.50 : x
  2. Step 2: Convert to fraction form
    123,354.14/185,054.58 = 39,135.50/x
  3. Step 3: Cross multiply
    123,354.14x = 185,054.58 × 39,135.50
  4. Step 4: Simplify right side
    123,354.14x = 7,242,203,284.27
  5. Step 5: Solve for x
    x = 7,242,203,284.27/123,354.14
  6. Step 6: Final answer
    x = 58,710.66

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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.