Home / 199,836.04-299,967.45-86,040.21

Finding the Fourth Proportional to 199,836.04, 299,967.45 and 86,040.21

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Solution

The fourth proportional to 199,836.04, 299,967.45 and 86,040.21 is: 129,152.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,836.04 : 299,967.45 = 86,040.21 : x
  2. Step 2: Convert to fraction form
    199,836.04/299,967.45 = 86,040.21/x
  3. Step 3: Cross multiply
    199,836.04x = 299,967.45 × 86,040.21
  4. Step 4: Simplify right side
    199,836.04x = 25,809,262,391.16
  5. Step 5: Solve for x
    x = 25,809,262,391.16/199,836.04
  6. Step 6: Final answer
    x = 129,152.19

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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.