Home / 141,809.32-195,701.02-78,151.20

Finding the Fourth Proportional to 141,809.32, 195,701.02 and 78,151.20

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Solution

The fourth proportional to 141,809.32, 195,701.02 and 78,151.20 is: 107,850.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,809.32 : 195,701.02 = 78,151.20 : x
  2. Step 2: Convert to fraction form
    141,809.32/195,701.02 = 78,151.20/x
  3. Step 3: Cross multiply
    141,809.32x = 195,701.02 × 78,151.20
  4. Step 4: Simplify right side
    141,809.32x = 15,294,269,554.22
  5. Step 5: Solve for x
    x = 15,294,269,554.22/141,809.32
  6. Step 6: Final answer
    x = 107,850.95

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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.