Home / 99,207.30-136,912.91-56,186.25

Finding the Fourth Proportional to 99,207.30, 136,912.91 and 56,186.25

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Solution

The fourth proportional to 99,207.30, 136,912.91 and 56,186.25 is: 77,540.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,207.30 : 136,912.91 = 56,186.25 : x
  2. Step 2: Convert to fraction form
    99,207.30/136,912.91 = 56,186.25/x
  3. Step 3: Cross multiply
    99,207.30x = 136,912.91 × 56,186.25
  4. Step 4: Simplify right side
    99,207.30x = 7,692,622,708.56
  5. Step 5: Solve for x
    x = 7,692,622,708.56/99,207.30
  6. Step 6: Final answer
    x = 77,540.89

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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.