Home / 106,620.36-159,535.89-85,495.80

Finding the Fourth Proportional to 106,620.36, 159,535.89 and 85,495.80

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Solution

The fourth proportional to 106,620.36, 159,535.89 and 85,495.80 is: 127,927.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,620.36 : 159,535.89 = 85,495.80 : x
  2. Step 2: Convert to fraction form
    106,620.36/159,535.89 = 85,495.80/x
  3. Step 3: Cross multiply
    106,620.36x = 159,535.89 × 85,495.80
  4. Step 4: Simplify right side
    106,620.36x = 13,639,648,544.26
  5. Step 5: Solve for x
    x = 13,639,648,544.26/106,620.36
  6. Step 6: Final answer
    x = 127,927.24

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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.