Home / 141,519.95-195,297.23-77,857.59

Finding the Fourth Proportional to 141,519.95, 195,297.23 and 77,857.59

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Solution

The fourth proportional to 141,519.95, 195,297.23 and 77,857.59 is: 107,443.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,519.95 : 195,297.23 = 77,857.59 : x
  2. Step 2: Convert to fraction form
    141,519.95/195,297.23 = 77,857.59/x
  3. Step 3: Cross multiply
    141,519.95x = 195,297.23 × 77,857.59
  4. Step 4: Simplify right side
    141,519.95x = 15,205,371,856.12
  5. Step 5: Solve for x
    x = 15,205,371,856.12/141,519.95
  6. Step 6: Final answer
    x = 107,443.31

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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.