Home / 103,631.22-155,243.44-53,743.93

Finding the Fourth Proportional to 103,631.22, 155,243.44 and 53,743.93

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Solution

The fourth proportional to 103,631.22, 155,243.44 and 53,743.93 is: 80,510.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,631.22 : 155,243.44 = 53,743.93 : x
  2. Step 2: Convert to fraction form
    103,631.22/155,243.44 = 53,743.93/x
  3. Step 3: Cross multiply
    103,631.22x = 155,243.44 × 53,743.93
  4. Step 4: Simplify right side
    103,631.22x = 8,343,392,572.32
  5. Step 5: Solve for x
    x = 8,343,392,572.32/103,631.22
  6. Step 6: Final answer
    x = 80,510.42

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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.