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Finding the Fourth Proportional to 117,444.90, 162,073.14 and 63,728.54

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Solution

The fourth proportional to 117,444.90, 162,073.14 and 63,728.54 is: 87,944.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,444.90 : 162,073.14 = 63,728.54 : x
  2. Step 2: Convert to fraction form
    117,444.90/162,073.14 = 63,728.54/x
  3. Step 3: Cross multiply
    117,444.90x = 162,073.14 × 63,728.54
  4. Step 4: Simplify right side
    117,444.90x = 10,328,683,775.05
  5. Step 5: Solve for x
    x = 10,328,683,775.05/117,444.90
  6. Step 6: Final answer
    x = 87,944.93

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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.