Home / 125,535.26-188,302.62-78,820.94

Finding the Fourth Proportional to 125,535.26, 188,302.62 and 78,820.94

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Solution

The fourth proportional to 125,535.26, 188,302.62 and 78,820.94 is: 118,231.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,535.26 : 188,302.62 = 78,820.94 : x
  2. Step 2: Convert to fraction form
    125,535.26/188,302.62 = 78,820.94/x
  3. Step 3: Cross multiply
    125,535.26x = 188,302.62 × 78,820.94
  4. Step 4: Simplify right side
    125,535.26x = 14,842,189,512.86
  5. Step 5: Solve for x
    x = 14,842,189,512.86/125,535.26
  6. Step 6: Final answer
    x = 118,231.24

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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.