Home / 160,761.43-221,722.77-103,407.31

Finding the Fourth Proportional to 160,761.43, 221,722.77 and 103,407.31

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Solution

The fourth proportional to 160,761.43, 221,722.77 and 103,407.31 is: 142,619.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,761.43 : 221,722.77 = 103,407.31 : x
  2. Step 2: Convert to fraction form
    160,761.43/221,722.77 = 103,407.31/x
  3. Step 3: Cross multiply
    160,761.43x = 221,722.77 × 103,407.31
  4. Step 4: Simplify right side
    160,761.43x = 22,927,755,211.45
  5. Step 5: Solve for x
    x = 22,927,755,211.45/160,761.43
  6. Step 6: Final answer
    x = 142,619.75

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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.