Home / 129,155.55-194,024.97-76,599.51

Finding the Fourth Proportional to 129,155.55, 194,024.97 and 76,599.51

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Solution

The fourth proportional to 129,155.55, 194,024.97 and 76,599.51 is: 115,072.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,155.55 : 194,024.97 = 76,599.51 : x
  2. Step 2: Convert to fraction form
    129,155.55/194,024.97 = 76,599.51/x
  3. Step 3: Cross multiply
    129,155.55x = 194,024.97 × 76,599.51
  4. Step 4: Simplify right side
    129,155.55x = 14,862,217,629.76
  5. Step 5: Solve for x
    x = 14,862,217,629.76/129,155.55
  6. Step 6: Final answer
    x = 115,072.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.