Home / 141,898.58-195,821.36-78,238.64

Finding the Fourth Proportional to 141,898.58, 195,821.36 and 78,238.64

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Solution

The fourth proportional to 141,898.58, 195,821.36 and 78,238.64 is: 107,970.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,898.58 : 195,821.36 = 78,238.64 : x
  2. Step 2: Convert to fraction form
    141,898.58/195,821.36 = 78,238.64/x
  3. Step 3: Cross multiply
    141,898.58x = 195,821.36 × 78,238.64
  4. Step 4: Simplify right side
    141,898.58x = 15,320,796,889.35
  5. Step 5: Solve for x
    x = 15,320,796,889.35/141,898.58
  6. Step 6: Final answer
    x = 107,970.05

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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.