Home / 99,189.36-136,923.20-66,967.63

Finding the Fourth Proportional to 99,189.36, 136,923.20 and 66,967.63

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Solution

The fourth proportional to 99,189.36, 136,923.20 and 66,967.63 is: 92,443.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,189.36 : 136,923.20 = 66,967.63 : x
  2. Step 2: Convert to fraction form
    99,189.36/136,923.20 = 66,967.63/x
  3. Step 3: Cross multiply
    99,189.36x = 136,923.20 × 66,967.63
  4. Step 4: Simplify right side
    99,189.36x = 9,169,422,146.69
  5. Step 5: Solve for x
    x = 9,169,422,146.69/99,189.36
  6. Step 6: Final answer
    x = 92,443.61

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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.