Home / 117,163.48-161,697.18-66,870.04

Finding the Fourth Proportional to 117,163.48, 161,697.18 and 66,870.04

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Solution

The fourth proportional to 117,163.48, 161,697.18 and 66,870.04 is: 92,287.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,163.48 : 161,697.18 = 66,870.04 : x
  2. Step 2: Convert to fraction form
    117,163.48/161,697.18 = 66,870.04/x
  3. Step 3: Cross multiply
    117,163.48x = 161,697.18 × 66,870.04
  4. Step 4: Simplify right side
    117,163.48x = 10,812,696,894.49
  5. Step 5: Solve for x
    x = 10,812,696,894.49/117,163.48
  6. Step 6: Final answer
    x = 92,287.26

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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.