Home / 141,865.74-195,772.58-78,202.16

Finding the Fourth Proportional to 141,865.74, 195,772.58 and 78,202.16

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Solution

The fourth proportional to 141,865.74, 195,772.58 and 78,202.16 is: 107,917.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,865.74 : 195,772.58 = 78,202.16 : x
  2. Step 2: Convert to fraction form
    141,865.74/195,772.58 = 78,202.16/x
  3. Step 3: Cross multiply
    141,865.74x = 195,772.58 × 78,202.16
  4. Step 4: Simplify right side
    141,865.74x = 15,309,838,624.77
  5. Step 5: Solve for x
    x = 15,309,838,624.77/141,865.74
  6. Step 6: Final answer
    x = 107,917.80

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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.