Home / 142,260.66-196,321.77-78,599.93

Finding the Fourth Proportional to 142,260.66, 196,321.77 and 78,599.93

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Solution

The fourth proportional to 142,260.66, 196,321.77 and 78,599.93 is: 108,469.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,260.66 : 196,321.77 = 78,599.93 : x
  2. Step 2: Convert to fraction form
    142,260.66/196,321.77 = 78,599.93/x
  3. Step 3: Cross multiply
    142,260.66x = 196,321.77 × 78,599.93
  4. Step 4: Simplify right side
    142,260.66x = 15,430,876,397.87
  5. Step 5: Solve for x
    x = 15,430,876,397.87/142,260.66
  6. Step 6: Final answer
    x = 108,469.03

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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.