Home / 141,217.78-194,880.29-77,555.57

Finding the Fourth Proportional to 141,217.78, 194,880.29 and 77,555.57

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Solution

The fourth proportional to 141,217.78, 194,880.29 and 77,555.57 is: 107,026.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,217.78 : 194,880.29 = 77,555.57 : x
  2. Step 2: Convert to fraction form
    141,217.78/194,880.29 = 77,555.57/x
  3. Step 3: Cross multiply
    141,217.78x = 194,880.29 × 77,555.57
  4. Step 4: Simplify right side
    141,217.78x = 15,114,051,679.40
  5. Step 5: Solve for x
    x = 15,114,051,679.40/141,217.78
  6. Step 6: Final answer
    x = 107,026.55

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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.