Home / 207,323.48-286,194.68-139,379.86

Finding the Fourth Proportional to 207,323.48, 286,194.68 and 139,379.86

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Solution

The fourth proportional to 207,323.48, 286,194.68 and 139,379.86 is: 192,403.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,323.48 : 286,194.68 = 139,379.86 : x
  2. Step 2: Convert to fraction form
    207,323.48/286,194.68 = 139,379.86/x
  3. Step 3: Cross multiply
    207,323.48x = 286,194.68 × 139,379.86
  4. Step 4: Simplify right side
    207,323.48x = 39,889,774,614.66
  5. Step 5: Solve for x
    x = 39,889,774,614.66/207,323.48
  6. Step 6: Final answer
    x = 192,403.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.