Home / 149,512.70-206,320-84,980.27

Finding the Fourth Proportional to 149,512.70, 206,320 and 84,980.27

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Solution

The fourth proportional to 149,512.70, 206,320 and 84,980.27 is: 117,268.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,512.70 : 206,320 = 84,980.27 : x
  2. Step 2: Convert to fraction form
    149,512.70/206,320 = 84,980.27/x
  3. Step 3: Cross multiply
    149,512.70x = 206,320 × 84,980.27
  4. Step 4: Simplify right side
    149,512.70x = 17,533,129,306.40
  5. Step 5: Solve for x
    x = 17,533,129,306.40/149,512.70
  6. Step 6: Final answer
    x = 117,268.49

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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.