Home / 141,690.06-195,529.95-78,033.78

Finding the Fourth Proportional to 141,690.06, 195,529.95 and 78,033.78

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Solution

The fourth proportional to 141,690.06, 195,529.95 and 78,033.78 is: 107,685.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,690.06 : 195,529.95 = 78,033.78 : x
  2. Step 2: Convert to fraction form
    141,690.06/195,529.95 = 78,033.78/x
  3. Step 3: Cross multiply
    141,690.06x = 195,529.95 × 78,033.78
  4. Step 4: Simplify right side
    141,690.06x = 15,257,941,101.71
  5. Step 5: Solve for x
    x = 15,257,941,101.71/141,690.06
  6. Step 6: Final answer
    x = 107,685.33

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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.