Home / 189,636.53-261,699.30-103,596.71

Finding the Fourth Proportional to 189,636.53, 261,699.30 and 103,596.71

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Solution

The fourth proportional to 189,636.53, 261,699.30 and 103,596.71 is: 142,963.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,636.53 : 261,699.30 = 103,596.71 : x
  2. Step 2: Convert to fraction form
    189,636.53/261,699.30 = 103,596.71/x
  3. Step 3: Cross multiply
    189,636.53x = 261,699.30 × 103,596.71
  4. Step 4: Simplify right side
    189,636.53x = 27,111,185,180.81
  5. Step 5: Solve for x
    x = 27,111,185,180.81/189,636.53
  6. Step 6: Final answer
    x = 142,963.94

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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.