Home / 133,328.20-183,995.57-72,902.61

Finding the Fourth Proportional to 133,328.20, 183,995.57 and 72,902.61

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Solution

The fourth proportional to 133,328.20, 183,995.57 and 72,902.61 is: 100,607.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,328.20 : 183,995.57 = 72,902.61 : x
  2. Step 2: Convert to fraction form
    133,328.20/183,995.57 = 72,902.61/x
  3. Step 3: Cross multiply
    133,328.20x = 183,995.57 × 72,902.61
  4. Step 4: Simplify right side
    133,328.20x = 13,413,757,281.44
  5. Step 5: Solve for x
    x = 13,413,757,281.44/133,328.20
  6. Step 6: Final answer
    x = 100,607.05

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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.