Home / 141,768.45-195,649.29-78,106.23

Finding the Fourth Proportional to 141,768.45, 195,649.29 and 78,106.23

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Solution

The fourth proportional to 141,768.45, 195,649.29 and 78,106.23 is: 107,791.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,768.45 : 195,649.29 = 78,106.23 : x
  2. Step 2: Convert to fraction form
    141,768.45/195,649.29 = 78,106.23/x
  3. Step 3: Cross multiply
    141,768.45x = 195,649.29 × 78,106.23
  4. Step 4: Simplify right side
    141,768.45x = 15,281,428,444.08
  5. Step 5: Solve for x
    x = 15,281,428,444.08/141,768.45
  6. Step 6: Final answer
    x = 107,791.46

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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.