Home / 99,128.16-136,794.24-54,416.16

Finding the Fourth Proportional to 99,128.16, 136,794.24 and 54,416.16

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Solution

The fourth proportional to 99,128.16, 136,794.24 and 54,416.16 is: 75,092.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,128.16 : 136,794.24 = 54,416.16 : x
  2. Step 2: Convert to fraction form
    99,128.16/136,794.24 = 54,416.16/x
  3. Step 3: Cross multiply
    99,128.16x = 136,794.24 × 54,416.16
  4. Step 4: Simplify right side
    99,128.16x = 7,443,817,250.92
  5. Step 5: Solve for x
    x = 7,443,817,250.92/99,128.16
  6. Step 6: Final answer
    x = 75,092.86

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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.