Home / 125,788.02-188,667.45-68,879.04

Finding the Fourth Proportional to 125,788.02, 188,667.45 and 68,879.04

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Solution

The fourth proportional to 125,788.02, 188,667.45 and 68,879.04 is: 103,310.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,788.02 : 188,667.45 = 68,879.04 : x
  2. Step 2: Convert to fraction form
    125,788.02/188,667.45 = 68,879.04/x
  3. Step 3: Cross multiply
    125,788.02x = 188,667.45 × 68,879.04
  4. Step 4: Simplify right side
    125,788.02x = 12,995,232,835.25
  5. Step 5: Solve for x
    x = 12,995,232,835.25/125,788.02
  6. Step 6: Final answer
    x = 103,310.58

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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.