Home / 99,128.39-136,797.27-53,806.35

Finding the Fourth Proportional to 99,128.39, 136,797.27 and 53,806.35

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Solution

The fourth proportional to 99,128.39, 136,797.27 and 53,806.35 is: 74,252.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,128.39 : 136,797.27 = 53,806.35 : x
  2. Step 2: Convert to fraction form
    99,128.39/136,797.27 = 53,806.35/x
  3. Step 3: Cross multiply
    99,128.39x = 136,797.27 × 53,806.35
  4. Step 4: Simplify right side
    99,128.39x = 7,360,561,790.80
  5. Step 5: Solve for x
    x = 7,360,561,790.80/99,128.39
  6. Step 6: Final answer
    x = 74,252.81

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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.