Home / 106,556.40-159,828.32-39,990.94

Finding the Fourth Proportional to 106,556.40, 159,828.32 and 39,990.94

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Solution

The fourth proportional to 106,556.40, 159,828.32 and 39,990.94 is: 59,984.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,556.40 : 159,828.32 = 39,990.94 : x
  2. Step 2: Convert to fraction form
    106,556.40/159,828.32 = 39,990.94/x
  3. Step 3: Cross multiply
    106,556.40x = 159,828.32 × 39,990.94
  4. Step 4: Simplify right side
    106,556.40x = 6,391,684,455.83
  5. Step 5: Solve for x
    x = 6,391,684,455.83/106,556.40
  6. Step 6: Final answer
    x = 59,984.05

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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.