Home / 147,029.80-220,546.40-139,859.16

Finding the Fourth Proportional to 147,029.80, 220,546.40 and 139,859.16

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Solution

The fourth proportional to 147,029.80, 220,546.40 and 139,859.16 is: 209,790.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,029.80 : 220,546.40 = 139,859.16 : x
  2. Step 2: Convert to fraction form
    147,029.80/220,546.40 = 139,859.16/x
  3. Step 3: Cross multiply
    147,029.80x = 220,546.40 × 139,859.16
  4. Step 4: Simplify right side
    147,029.80x = 30,845,434,245.02
  5. Step 5: Solve for x
    x = 30,845,434,245.02/147,029.80
  6. Step 6: Final answer
    x = 209,790.36

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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.