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Finding the Fourth Proportional to 117,455.84, 162,089.16 and 63,740.86

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Solution

The fourth proportional to 117,455.84, 162,089.16 and 63,740.86 is: 87,962.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,455.84 : 162,089.16 = 63,740.86 : x
  2. Step 2: Convert to fraction form
    117,455.84/162,089.16 = 63,740.86/x
  3. Step 3: Cross multiply
    117,455.84x = 162,089.16 × 63,740.86
  4. Step 4: Simplify right side
    117,455.84x = 10,331,702,049.85
  5. Step 5: Solve for x
    x = 10,331,702,049.85/117,455.84
  6. Step 6: Final answer
    x = 87,962.44

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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.