Home / 141,853.95-195,758.45-78,193.12

Finding the Fourth Proportional to 141,853.95, 195,758.45 and 78,193.12

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Solution

The fourth proportional to 141,853.95, 195,758.45 and 78,193.12 is: 107,906.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,853.95 : 195,758.45 = 78,193.12 : x
  2. Step 2: Convert to fraction form
    141,853.95/195,758.45 = 78,193.12/x
  3. Step 3: Cross multiply
    141,853.95x = 195,758.45 × 78,193.12
  4. Step 4: Simplify right side
    141,853.95x = 15,306,963,971.86
  5. Step 5: Solve for x
    x = 15,306,963,971.86/141,853.95
  6. Step 6: Final answer
    x = 107,906.51

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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.