Home / 141,855.48-195,760.51-78,194.34

Finding the Fourth Proportional to 141,855.48, 195,760.51 and 78,194.34

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Solution

The fourth proportional to 141,855.48, 195,760.51 and 78,194.34 is: 107,908.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,855.48 : 195,760.51 = 78,194.34 : x
  2. Step 2: Convert to fraction form
    141,855.48/195,760.51 = 78,194.34/x
  3. Step 3: Cross multiply
    141,855.48x = 195,760.51 × 78,194.34
  4. Step 4: Simplify right side
    141,855.48x = 15,307,363,388.11
  5. Step 5: Solve for x
    x = 15,307,363,388.11/141,855.48
  6. Step 6: Final answer
    x = 107,908.16

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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.