Home / 117,708.48-162,463.04-72,424.96

Finding the Fourth Proportional to 117,708.48, 162,463.04 and 72,424.96

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Solution

The fourth proportional to 117,708.48, 162,463.04 and 72,424.96 is: 99,962.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,708.48 : 162,463.04 = 72,424.96 : x
  2. Step 2: Convert to fraction form
    117,708.48/162,463.04 = 72,424.96/x
  3. Step 3: Cross multiply
    117,708.48x = 162,463.04 × 72,424.96
  4. Step 4: Simplify right side
    117,708.48x = 11,766,379,173.48
  5. Step 5: Solve for x
    x = 11,766,379,173.48/117,708.48
  6. Step 6: Final answer
    x = 99,962.03

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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.