Home / 106,218.40-159,135.60-61,808.80

Finding the Fourth Proportional to 106,218.40, 159,135.60 and 61,808.80

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Solution

The fourth proportional to 106,218.40, 159,135.60 and 61,808.80 is: 92,601.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,218.40 : 159,135.60 = 61,808.80 : x
  2. Step 2: Convert to fraction form
    106,218.40/159,135.60 = 61,808.80/x
  3. Step 3: Cross multiply
    106,218.40x = 159,135.60 × 61,808.80
  4. Step 4: Simplify right side
    106,218.40x = 9,835,980,473.28
  5. Step 5: Solve for x
    x = 9,835,980,473.28/106,218.40
  6. Step 6: Final answer
    x = 92,601.47

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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.