Home / 102,575.40-153,603.90-67,324.20

Finding the Fourth Proportional to 102,575.40, 153,603.90 and 67,324.20

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Solution

The fourth proportional to 102,575.40, 153,603.90 and 67,324.20 is: 100,816.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,575.40 : 153,603.90 = 67,324.20 : x
  2. Step 2: Convert to fraction form
    102,575.40/153,603.90 = 67,324.20/x
  3. Step 3: Cross multiply
    102,575.40x = 153,603.90 × 67,324.20
  4. Step 4: Simplify right side
    102,575.40x = 10,341,259,684.38
  5. Step 5: Solve for x
    x = 10,341,259,684.38/102,575.40
  6. Step 6: Final answer
    x = 100,816.18

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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.