Home / 95,904.80-143,857.20-78,190.10

Finding the Fourth Proportional to 95,904.80, 143,857.20 and 78,190.10

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Solution

The fourth proportional to 95,904.80, 143,857.20 and 78,190.10 is: 117,285.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,904.80 : 143,857.20 = 78,190.10 : x
  2. Step 2: Convert to fraction form
    95,904.80/143,857.20 = 78,190.10/x
  3. Step 3: Cross multiply
    95,904.80x = 143,857.20 × 78,190.10
  4. Step 4: Simplify right side
    95,904.80x = 11,248,208,853.72
  5. Step 5: Solve for x
    x = 11,248,208,853.72/95,904.80
  6. Step 6: Final answer
    x = 117,285.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.