Home / 107,922.80-161,819.40-55,434.80

Finding the Fourth Proportional to 107,922.80, 161,819.40 and 55,434.80

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Solution

The fourth proportional to 107,922.80, 161,819.40 and 55,434.80 is: 83,118.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,922.80 : 161,819.40 = 55,434.80 : x
  2. Step 2: Convert to fraction form
    107,922.80/161,819.40 = 55,434.80/x
  3. Step 3: Cross multiply
    107,922.80x = 161,819.40 × 55,434.80
  4. Step 4: Simplify right side
    107,922.80x = 8,970,426,075.12
  5. Step 5: Solve for x
    x = 8,970,426,075.12/107,922.80
  6. Step 6: Final answer
    x = 83,118.92

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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.