Home / 131,819.03-181,913.59-80,859.86

Finding the Fourth Proportional to 131,819.03, 181,913.59 and 80,859.86

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Solution

The fourth proportional to 131,819.03, 181,913.59 and 80,859.86 is: 111,588.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,819.03 : 181,913.59 = 80,859.86 : x
  2. Step 2: Convert to fraction form
    131,819.03/181,913.59 = 80,859.86/x
  3. Step 3: Cross multiply
    131,819.03x = 181,913.59 × 80,859.86
  4. Step 4: Simplify right side
    131,819.03x = 14,709,507,419.50
  5. Step 5: Solve for x
    x = 14,709,507,419.50/131,819.03
  6. Step 6: Final answer
    x = 111,588.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.