Home / 106,420.71-159,669.23-45,605.46

Finding the Fourth Proportional to 106,420.71, 159,669.23 and 45,605.46

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Solution

The fourth proportional to 106,420.71, 159,669.23 and 45,605.46 is: 68,424.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,420.71 : 159,669.23 = 45,605.46 : x
  2. Step 2: Convert to fraction form
    106,420.71/159,669.23 = 45,605.46/x
  3. Step 3: Cross multiply
    106,420.71x = 159,669.23 × 45,605.46
  4. Step 4: Simplify right side
    106,420.71x = 7,281,788,453.97
  5. Step 5: Solve for x
    x = 7,281,788,453.97/106,420.71
  6. Step 6: Final answer
    x = 68,424.54

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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.