Home / 139,558.26-209,365.07-39,722.38

Finding the Fourth Proportional to 139,558.26, 209,365.07 and 39,722.38

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Solution

The fourth proportional to 139,558.26, 209,365.07 and 39,722.38 is: 59,591.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,558.26 : 209,365.07 = 39,722.38 : x
  2. Step 2: Convert to fraction form
    139,558.26/209,365.07 = 39,722.38/x
  3. Step 3: Cross multiply
    139,558.26x = 209,365.07 × 39,722.38
  4. Step 4: Simplify right side
    139,558.26x = 8,316,478,869.27
  5. Step 5: Solve for x
    x = 8,316,478,869.27/139,558.26
  6. Step 6: Final answer
    x = 59,591.45

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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.