Home / 91,820.48-137,463.36-68,232.64

Finding the Fourth Proportional to 91,820.48, 137,463.36 and 68,232.64

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Solution

The fourth proportional to 91,820.48, 137,463.36 and 68,232.64 is: 102,150.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,820.48 : 137,463.36 = 68,232.64 : x
  2. Step 2: Convert to fraction form
    91,820.48/137,463.36 = 68,232.64/x
  3. Step 3: Cross multiply
    91,820.48x = 137,463.36 × 68,232.64
  4. Step 4: Simplify right side
    91,820.48x = 9,379,487,956.07
  5. Step 5: Solve for x
    x = 9,379,487,956.07/91,820.48
  6. Step 6: Final answer
    x = 102,150.28

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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.