Home / 156,936.67-216,563.41-85,316.06

Finding the Fourth Proportional to 156,936.67, 216,563.41 and 85,316.06

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Solution

The fourth proportional to 156,936.67, 216,563.41 and 85,316.06 is: 117,731.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,936.67 : 216,563.41 = 85,316.06 : x
  2. Step 2: Convert to fraction form
    156,936.67/216,563.41 = 85,316.06/x
  3. Step 3: Cross multiply
    156,936.67x = 216,563.41 × 85,316.06
  4. Step 4: Simplify right side
    156,936.67x = 18,476,336,454.78
  5. Step 5: Solve for x
    x = 18,476,336,454.78/156,936.67
  6. Step 6: Final answer
    x = 117,731.17

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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.