Home / 91,768.14-137,430.68-52,205.31

Finding the Fourth Proportional to 91,768.14, 137,430.68 and 52,205.31

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Solution

The fourth proportional to 91,768.14, 137,430.68 and 52,205.31 is: 78,181.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,768.14 : 137,430.68 = 52,205.31 : x
  2. Step 2: Convert to fraction form
    91,768.14/137,430.68 = 52,205.31/x
  3. Step 3: Cross multiply
    91,768.14x = 137,430.68 × 52,205.31
  4. Step 4: Simplify right side
    91,768.14x = 7,174,610,991.88
  5. Step 5: Solve for x
    x = 7,174,610,991.88/91,768.14
  6. Step 6: Final answer
    x = 78,181.94

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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.