Home / 141,901.28-195,832.59-78,238.98

Finding the Fourth Proportional to 141,901.28, 195,832.59 and 78,238.98

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Solution

The fourth proportional to 141,901.28, 195,832.59 and 78,238.98 is: 107,974.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,901.28 : 195,832.59 = 78,238.98 : x
  2. Step 2: Convert to fraction form
    141,901.28/195,832.59 = 78,238.98/x
  3. Step 3: Cross multiply
    141,901.28x = 195,832.59 × 78,238.98
  4. Step 4: Simplify right side
    141,901.28x = 15,321,742,092.36
  5. Step 5: Solve for x
    x = 15,321,742,092.36/141,901.28
  6. Step 6: Final answer
    x = 107,974.66

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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.