Home / 85,669.06-127,890.41-74,462.04

Finding the Fourth Proportional to 85,669.06, 127,890.41 and 74,462.04

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Solution

The fourth proportional to 85,669.06, 127,890.41 and 74,462.04 is: 111,160.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,669.06 : 127,890.41 = 74,462.04 : x
  2. Step 2: Convert to fraction form
    85,669.06/127,890.41 = 74,462.04/x
  3. Step 3: Cross multiply
    85,669.06x = 127,890.41 × 74,462.04
  4. Step 4: Simplify right side
    85,669.06x = 9,522,980,825.04
  5. Step 5: Solve for x
    x = 9,522,980,825.04/85,669.06
  6. Step 6: Final answer
    x = 111,160.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.