Home / 198,536.37-297,637.26-86,132.01

Finding the Fourth Proportional to 198,536.37, 297,637.26 and 86,132.01

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Solution

The fourth proportional to 198,536.37, 297,637.26 and 86,132.01 is: 129,125.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,536.37 : 297,637.26 = 86,132.01 : x
  2. Step 2: Convert to fraction form
    198,536.37/297,637.26 = 86,132.01/x
  3. Step 3: Cross multiply
    198,536.37x = 297,637.26 × 86,132.01
  4. Step 4: Simplify right side
    198,536.37x = 25,636,094,815.87
  5. Step 5: Solve for x
    x = 25,636,094,815.87/198,536.37
  6. Step 6: Final answer
    x = 129,125.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.