Home / 107,519.04-161,006.40-79,447.68

Finding the Fourth Proportional to 107,519.04, 161,006.40 and 79,447.68

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Solution

The fourth proportional to 107,519.04, 161,006.40 and 79,447.68 is: 118,970.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,519.04 : 161,006.40 = 79,447.68 : x
  2. Step 2: Convert to fraction form
    107,519.04/161,006.40 = 79,447.68/x
  3. Step 3: Cross multiply
    107,519.04x = 161,006.40 × 79,447.68
  4. Step 4: Simplify right side
    107,519.04x = 12,791,584,945.15
  5. Step 5: Solve for x
    x = 12,791,584,945.15/107,519.04
  6. Step 6: Final answer
    x = 118,970.42

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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.