Home / 141,947.56-195,885.30-78,291.28

Finding the Fourth Proportional to 141,947.56, 195,885.30 and 78,291.28

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Solution

The fourth proportional to 141,947.56, 195,885.30 and 78,291.28 is: 108,040.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,947.56 : 195,885.30 = 78,291.28 : x
  2. Step 2: Convert to fraction form
    141,947.56/195,885.30 = 78,291.28/x
  3. Step 3: Cross multiply
    141,947.56x = 195,885.30 × 78,291.28
  4. Step 4: Simplify right side
    141,947.56x = 15,336,110,870.18
  5. Step 5: Solve for x
    x = 15,336,110,870.18/141,947.56
  6. Step 6: Final answer
    x = 108,040.68

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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.