Home / 156,621.60-234,964.44-66,664.17

Finding the Fourth Proportional to 156,621.60, 234,964.44 and 66,664.17

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Solution

The fourth proportional to 156,621.60, 234,964.44 and 66,664.17 is: 100,009.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,621.60 : 234,964.44 = 66,664.17 : x
  2. Step 2: Convert to fraction form
    156,621.60/234,964.44 = 66,664.17/x
  3. Step 3: Cross multiply
    156,621.60x = 234,964.44 × 66,664.17
  4. Step 4: Simplify right side
    156,621.60x = 15,663,709,372.11
  5. Step 5: Solve for x
    x = 15,663,709,372.11/156,621.60
  6. Step 6: Final answer
    x = 100,009.89

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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.