Home / 129,338.95-193,647.96-66,022.87

Finding the Fourth Proportional to 129,338.95, 193,647.96 and 66,022.87

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Solution

The fourth proportional to 129,338.95, 193,647.96 and 66,022.87 is: 98,850.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,338.95 : 193,647.96 = 66,022.87 : x
  2. Step 2: Convert to fraction form
    129,338.95/193,647.96 = 66,022.87/x
  3. Step 3: Cross multiply
    129,338.95x = 193,647.96 × 66,022.87
  4. Step 4: Simplify right side
    129,338.95x = 12,785,194,088.85
  5. Step 5: Solve for x
    x = 12,785,194,088.85/129,338.95
  6. Step 6: Final answer
    x = 98,850.30

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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.