Home / 109,860.48-151,608.63-64,540.35

Finding the Fourth Proportional to 109,860.48, 151,608.63 and 64,540.35

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Solution

The fourth proportional to 109,860.48, 151,608.63 and 64,540.35 is: 89,066.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,860.48 : 151,608.63 = 64,540.35 : x
  2. Step 2: Convert to fraction form
    109,860.48/151,608.63 = 64,540.35/x
  3. Step 3: Cross multiply
    109,860.48x = 151,608.63 × 64,540.35
  4. Step 4: Simplify right side
    109,860.48x = 9,784,874,043.22
  5. Step 5: Solve for x
    x = 9,784,874,043.22/109,860.48
  6. Step 6: Final answer
    x = 89,066.37

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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.