Home / 106,211.12-159,317.71-30,309.59

Finding the Fourth Proportional to 106,211.12, 159,317.71 and 30,309.59

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Solution

The fourth proportional to 106,211.12, 159,317.71 and 30,309.59 is: 45,464.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,211.12 : 159,317.71 = 30,309.59 : x
  2. Step 2: Convert to fraction form
    106,211.12/159,317.71 = 30,309.59/x
  3. Step 3: Cross multiply
    106,211.12x = 159,317.71 × 30,309.59
  4. Step 4: Simplify right side
    106,211.12x = 4,828,854,877.60
  5. Step 5: Solve for x
    x = 4,828,854,877.60/106,211.12
  6. Step 6: Final answer
    x = 45,464.68

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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.