Home / 141,511.45-195,278.74-77,847.61

Finding the Fourth Proportional to 141,511.45, 195,278.74 and 77,847.61

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Solution

The fourth proportional to 141,511.45, 195,278.74 and 77,847.61 is: 107,425.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,511.45 : 195,278.74 = 77,847.61 : x
  2. Step 2: Convert to fraction form
    141,511.45/195,278.74 = 77,847.61/x
  3. Step 3: Cross multiply
    141,511.45x = 195,278.74 × 77,847.61
  4. Step 4: Simplify right side
    141,511.45x = 15,201,983,192.81
  5. Step 5: Solve for x
    x = 15,201,983,192.81/141,511.45
  6. Step 6: Final answer
    x = 107,425.82

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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.