Home / 141,400.50-195,133.96-76,869.87

Finding the Fourth Proportional to 141,400.50, 195,133.96 and 76,869.87

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Solution

The fourth proportional to 141,400.50, 195,133.96 and 76,869.87 is: 106,081.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,400.50 : 195,133.96 = 76,869.87 : x
  2. Step 2: Convert to fraction form
    141,400.50/195,133.96 = 76,869.87/x
  3. Step 3: Cross multiply
    141,400.50x = 195,133.96 × 76,869.87
  4. Step 4: Simplify right side
    141,400.50x = 14,999,921,753.44
  5. Step 5: Solve for x
    x = 14,999,921,753.44/141,400.50
  6. Step 6: Final answer
    x = 106,081.11

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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.