Home / 159,434.13-220,010.79-99,003.48

Finding the Fourth Proportional to 159,434.13, 220,010.79 and 99,003.48

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Solution

The fourth proportional to 159,434.13, 220,010.79 and 99,003.48 is: 136,619.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,434.13 : 220,010.79 = 99,003.48 : x
  2. Step 2: Convert to fraction form
    159,434.13/220,010.79 = 99,003.48/x
  3. Step 3: Cross multiply
    159,434.13x = 220,010.79 × 99,003.48
  4. Step 4: Simplify right side
    159,434.13x = 21,781,833,393.77
  5. Step 5: Solve for x
    x = 21,781,833,393.77/159,434.13
  6. Step 6: Final answer
    x = 136,619.64

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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.