Home / 141,833.40-195,731.28-78,171.36

Finding the Fourth Proportional to 141,833.40, 195,731.28 and 78,171.36

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Solution

The fourth proportional to 141,833.40, 195,731.28 and 78,171.36 is: 107,877.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,833.40 : 195,731.28 = 78,171.36 : x
  2. Step 2: Convert to fraction form
    141,833.40/195,731.28 = 78,171.36/x
  3. Step 3: Cross multiply
    141,833.40x = 195,731.28 × 78,171.36
  4. Step 4: Simplify right side
    141,833.40x = 15,300,580,352.14
  5. Step 5: Solve for x
    x = 15,300,580,352.14/141,833.40
  6. Step 6: Final answer
    x = 107,877.13

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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.