Home / 107,926.80-161,825.40-55,438.80

Finding the Fourth Proportional to 107,926.80, 161,825.40 and 55,438.80

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Solution

The fourth proportional to 107,926.80, 161,825.40 and 55,438.80 is: 83,124.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,926.80 : 161,825.40 = 55,438.80 : x
  2. Step 2: Convert to fraction form
    107,926.80/161,825.40 = 55,438.80/x
  3. Step 3: Cross multiply
    107,926.80x = 161,825.40 × 55,438.80
  4. Step 4: Simplify right side
    107,926.80x = 8,971,405,985.52
  5. Step 5: Solve for x
    x = 8,971,405,985.52/107,926.80
  6. Step 6: Final answer
    x = 83,124.91

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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.