Home / 149,283.17-206,009.33-81,301.28

Finding the Fourth Proportional to 149,283.17, 206,009.33 and 81,301.28

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Solution

The fourth proportional to 149,283.17, 206,009.33 and 81,301.28 is: 112,194.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,283.17 : 206,009.33 = 81,301.28 : x
  2. Step 2: Convert to fraction form
    149,283.17/206,009.33 = 81,301.28/x
  3. Step 3: Cross multiply
    149,283.17x = 206,009.33 × 81,301.28
  4. Step 4: Simplify right side
    149,283.17x = 16,748,821,470.37
  5. Step 5: Solve for x
    x = 16,748,821,470.37/149,283.17
  6. Step 6: Final answer
    x = 112,194.98

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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.