Home / 109,825.80-151,569-62,087.64

Finding the Fourth Proportional to 109,825.80, 151,569 and 62,087.64

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Solution

The fourth proportional to 109,825.80, 151,569 and 62,087.64 is: 85,686.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,825.80 : 151,569 = 62,087.64 : x
  2. Step 2: Convert to fraction form
    109,825.80/151,569 = 62,087.64/x
  3. Step 3: Cross multiply
    109,825.80x = 151,569 × 62,087.64
  4. Step 4: Simplify right side
    109,825.80x = 9,410,561,507.16
  5. Step 5: Solve for x
    x = 9,410,561,507.16/109,825.80
  6. Step 6: Final answer
    x = 85,686.26

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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.