Home / 141,800.06-195,688.19-78,141.96

Finding the Fourth Proportional to 141,800.06, 195,688.19 and 78,141.96

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Solution

The fourth proportional to 141,800.06, 195,688.19 and 78,141.96 is: 107,838.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,800.06 : 195,688.19 = 78,141.96 : x
  2. Step 2: Convert to fraction form
    141,800.06/195,688.19 = 78,141.96/x
  3. Step 3: Cross multiply
    141,800.06x = 195,688.19 × 78,141.96
  4. Step 4: Simplify right side
    141,800.06x = 15,291,458,910.81
  5. Step 5: Solve for x
    x = 15,291,458,910.81/141,800.06
  6. Step 6: Final answer
    x = 107,838.17

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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.