Home / 148,991.22-205,578.36-83,582.16

Finding the Fourth Proportional to 148,991.22, 205,578.36 and 83,582.16

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Solution

The fourth proportional to 148,991.22, 205,578.36 and 83,582.16 is: 115,326.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,991.22 : 205,578.36 = 83,582.16 : x
  2. Step 2: Convert to fraction form
    148,991.22/205,578.36 = 83,582.16/x
  3. Step 3: Cross multiply
    148,991.22x = 205,578.36 × 83,582.16
  4. Step 4: Simplify right side
    148,991.22x = 17,182,683,378.06
  5. Step 5: Solve for x
    x = 17,182,683,378.06/148,991.22
  6. Step 6: Final answer
    x = 115,326.82

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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.