Home / 199,129.06-274,613.52-145,328.86

Finding the Fourth Proportional to 199,129.06, 274,613.52 and 145,328.86

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Solution

The fourth proportional to 199,129.06, 274,613.52 and 145,328.86 is: 200,419.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,129.06 : 274,613.52 = 145,328.86 : x
  2. Step 2: Convert to fraction form
    199,129.06/274,613.52 = 145,328.86/x
  3. Step 3: Cross multiply
    199,129.06x = 274,613.52 × 145,328.86
  4. Step 4: Simplify right side
    199,129.06x = 39,909,269,802.19
  5. Step 5: Solve for x
    x = 39,909,269,802.19/199,129.06
  6. Step 6: Final answer
    x = 200,419.11

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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.