Home / 141,829.31-195,724.04-78,167.09

Finding the Fourth Proportional to 141,829.31, 195,724.04 and 78,167.09

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Solution

The fourth proportional to 141,829.31, 195,724.04 and 78,167.09 is: 107,870.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,829.31 : 195,724.04 = 78,167.09 : x
  2. Step 2: Convert to fraction form
    141,829.31/195,724.04 = 78,167.09/x
  3. Step 3: Cross multiply
    141,829.31x = 195,724.04 × 78,167.09
  4. Step 4: Simplify right side
    141,829.31x = 15,299,177,280.39
  5. Step 5: Solve for x
    x = 15,299,177,280.39/141,829.31
  6. Step 6: Final answer
    x = 107,870.35

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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.