Home / 141,605.88-195,421.32-77,946.36

Finding the Fourth Proportional to 141,605.88, 195,421.32 and 77,946.36

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Solution

The fourth proportional to 141,605.88, 195,421.32 and 77,946.36 is: 107,568.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,605.88 : 195,421.32 = 77,946.36 : x
  2. Step 2: Convert to fraction form
    141,605.88/195,421.32 = 77,946.36/x
  3. Step 3: Cross multiply
    141,605.88x = 195,421.32 × 77,946.36
  4. Step 4: Simplify right side
    141,605.88x = 15,232,380,560.40
  5. Step 5: Solve for x
    x = 15,232,380,560.40/141,605.88
  6. Step 6: Final answer
    x = 107,568.84

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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.