Home / 141,763.95-195,643.08-78,101.73

Finding the Fourth Proportional to 141,763.95, 195,643.08 and 78,101.73

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Solution

The fourth proportional to 141,763.95, 195,643.08 and 78,101.73 is: 107,785.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,763.95 : 195,643.08 = 78,101.73 : x
  2. Step 2: Convert to fraction form
    141,763.95/195,643.08 = 78,101.73/x
  3. Step 3: Cross multiply
    141,763.95x = 195,643.08 × 78,101.73
  4. Step 4: Simplify right side
    141,763.95x = 15,280,063,010.53
  5. Step 5: Solve for x
    x = 15,280,063,010.53/141,763.95
  6. Step 6: Final answer
    x = 107,785.25

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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.