Home / 123,318.67-170,180.21-66,730.04

Finding the Fourth Proportional to 123,318.67, 170,180.21 and 66,730.04

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Solution

The fourth proportional to 123,318.67, 170,180.21 and 66,730.04 is: 92,087.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,318.67 : 170,180.21 = 66,730.04 : x
  2. Step 2: Convert to fraction form
    123,318.67/170,180.21 = 66,730.04/x
  3. Step 3: Cross multiply
    123,318.67x = 170,180.21 × 66,730.04
  4. Step 4: Simplify right side
    123,318.67x = 11,356,132,220.51
  5. Step 5: Solve for x
    x = 11,356,132,220.51/123,318.67
  6. Step 6: Final answer
    x = 92,087.70

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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.