Home / 198,303.28-297,564.06-85,984.36

Finding the Fourth Proportional to 198,303.28, 297,564.06 and 85,984.36

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Solution

The fourth proportional to 198,303.28, 297,564.06 and 85,984.36 is: 129,023.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,303.28 : 297,564.06 = 85,984.36 : x
  2. Step 2: Convert to fraction form
    198,303.28/297,564.06 = 85,984.36/x
  3. Step 3: Cross multiply
    198,303.28x = 297,564.06 × 85,984.36
  4. Step 4: Simplify right side
    198,303.28x = 25,585,855,258.10
  5. Step 5: Solve for x
    x = 25,585,855,258.10/198,303.28
  6. Step 6: Final answer
    x = 129,023.86

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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.