Home / 139,664.38-209,498.52-39,824.58

Finding the Fourth Proportional to 139,664.38, 209,498.52 and 39,824.58

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Solution

The fourth proportional to 139,664.38, 209,498.52 and 39,824.58 is: 59,737.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,664.38 : 209,498.52 = 39,824.58 : x
  2. Step 2: Convert to fraction form
    139,664.38/209,498.52 = 39,824.58/x
  3. Step 3: Cross multiply
    139,664.38x = 209,498.52 × 39,824.58
  4. Step 4: Simplify right side
    139,664.38x = 8,343,190,569.62
  5. Step 5: Solve for x
    x = 8,343,190,569.62/139,664.38
  6. Step 6: Final answer
    x = 59,737.43

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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.