Home / 112,726.05-169,203.03-99,986.76

Finding the Fourth Proportional to 112,726.05, 169,203.03 and 99,986.76

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Solution

The fourth proportional to 112,726.05, 169,203.03 and 99,986.76 is: 150,081.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,726.05 : 169,203.03 = 99,986.76 : x
  2. Step 2: Convert to fraction form
    112,726.05/169,203.03 = 99,986.76/x
  3. Step 3: Cross multiply
    112,726.05x = 169,203.03 × 99,986.76
  4. Step 4: Simplify right side
    112,726.05x = 16,918,062,751.88
  5. Step 5: Solve for x
    x = 16,918,062,751.88/112,726.05
  6. Step 6: Final answer
    x = 150,081.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.