Home / 141,862.76-195,771.95-78,202.83

Finding the Fourth Proportional to 141,862.76, 195,771.95 and 78,202.83

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Solution

The fourth proportional to 141,862.76, 195,771.95 and 78,202.83 is: 107,920.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,862.76 : 195,771.95 = 78,202.83 : x
  2. Step 2: Convert to fraction form
    141,862.76/195,771.95 = 78,202.83/x
  3. Step 3: Cross multiply
    141,862.76x = 195,771.95 × 78,202.83
  4. Step 4: Simplify right side
    141,862.76x = 15,309,920,133.60
  5. Step 5: Solve for x
    x = 15,309,920,133.60/141,862.76
  6. Step 6: Final answer
    x = 107,920.65

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1.5x scale

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.