Home / 106,631.88-159,970.40-40,072.60

Finding the Fourth Proportional to 106,631.88, 159,970.40 and 40,072.60

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Solution

The fourth proportional to 106,631.88, 159,970.40 and 40,072.60 is: 60,117.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,631.88 : 159,970.40 = 40,072.60 : x
  2. Step 2: Convert to fraction form
    106,631.88/159,970.40 = 40,072.60/x
  3. Step 3: Cross multiply
    106,631.88x = 159,970.40 × 40,072.60
  4. Step 4: Simplify right side
    106,631.88x = 6,410,429,851.04
  5. Step 5: Solve for x
    x = 6,410,429,851.04/106,631.88
  6. Step 6: Final answer
    x = 60,117.39

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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.