Home / 106,421.78-159,628.05-26,458.09

Finding the Fourth Proportional to 106,421.78, 159,628.05 and 26,458.09

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Solution

The fourth proportional to 106,421.78, 159,628.05 and 26,458.09 is: 39,685.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,421.78 : 159,628.05 = 26,458.09 : x
  2. Step 2: Convert to fraction form
    106,421.78/159,628.05 = 26,458.09/x
  3. Step 3: Cross multiply
    106,421.78x = 159,628.05 × 26,458.09
  4. Step 4: Simplify right side
    106,421.78x = 4,223,452,914.35
  5. Step 5: Solve for x
    x = 4,223,452,914.35/106,421.78
  6. Step 6: Final answer
    x = 39,685.98

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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.