Home / 141,799.06-195,686.88-78,140.95

Finding the Fourth Proportional to 141,799.06, 195,686.88 and 78,140.95

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Solution

The fourth proportional to 141,799.06, 195,686.88 and 78,140.95 is: 107,836.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,799.06 : 195,686.88 = 78,140.95 : x
  2. Step 2: Convert to fraction form
    141,799.06/195,686.88 = 78,140.95/x
  3. Step 3: Cross multiply
    141,799.06x = 195,686.88 × 78,140.95
  4. Step 4: Simplify right side
    141,799.06x = 15,291,158,705.74
  5. Step 5: Solve for x
    x = 15,291,158,705.74/141,799.06
  6. Step 6: Final answer
    x = 107,836.81

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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.