Home / 107,255.40-161,012.70-106,477.80

Finding the Fourth Proportional to 107,255.40, 161,012.70 and 106,477.80

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Solution

The fourth proportional to 107,255.40, 161,012.70 and 106,477.80 is: 159,845.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,255.40 : 161,012.70 = 106,477.80 : x
  2. Step 2: Convert to fraction form
    107,255.40/161,012.70 = 106,477.80/x
  3. Step 3: Cross multiply
    107,255.40x = 161,012.70 × 106,477.80
  4. Step 4: Simplify right side
    107,255.40x = 17,144,278,068.06
  5. Step 5: Solve for x
    x = 17,144,278,068.06/107,255.40
  6. Step 6: Final answer
    x = 159,845.36

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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.