Home / 129,261.69-193,891.08-50,431.28

Finding the Fourth Proportional to 129,261.69, 193,891.08 and 50,431.28

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Solution

The fourth proportional to 129,261.69, 193,891.08 and 50,431.28 is: 75,646.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,261.69 : 193,891.08 = 50,431.28 : x
  2. Step 2: Convert to fraction form
    129,261.69/193,891.08 = 50,431.28/x
  3. Step 3: Cross multiply
    129,261.69x = 193,891.08 × 50,431.28
  4. Step 4: Simplify right side
    129,261.69x = 9,778,174,564.64
  5. Step 5: Solve for x
    x = 9,778,174,564.64/129,261.69
  6. Step 6: Final answer
    x = 75,646.35

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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.