Home / 140,437.14-193,784.82-83,836.50

Finding the Fourth Proportional to 140,437.14, 193,784.82 and 83,836.50

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Solution

The fourth proportional to 140,437.14, 193,784.82 and 83,836.50 is: 115,683.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,437.14 : 193,784.82 = 83,836.50 : x
  2. Step 2: Convert to fraction form
    140,437.14/193,784.82 = 83,836.50/x
  3. Step 3: Cross multiply
    140,437.14x = 193,784.82 × 83,836.50
  4. Step 4: Simplify right side
    140,437.14x = 16,246,241,061.93
  5. Step 5: Solve for x
    x = 16,246,241,061.93/140,437.14
  6. Step 6: Final answer
    x = 115,683.37

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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.