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Finding the Fourth Proportional to 117,774.16, 162,500.60 and 79,604.88

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Solution

The fourth proportional to 117,774.16, 162,500.60 and 79,604.88 is: 109,835.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,774.16 : 162,500.60 = 79,604.88 : x
  2. Step 2: Convert to fraction form
    117,774.16/162,500.60 = 79,604.88/x
  3. Step 3: Cross multiply
    117,774.16x = 162,500.60 × 79,604.88
  4. Step 4: Simplify right side
    117,774.16x = 12,935,840,762.93
  5. Step 5: Solve for x
    x = 12,935,840,762.93/117,774.16
  6. Step 6: Final answer
    x = 109,835.98

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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.