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Finding the Fourth Proportional to 134,662.92, 185,813.10 and 80,935.08

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Solution

The fourth proportional to 134,662.92, 185,813.10 and 80,935.08 is: 111,677.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,662.92 : 185,813.10 = 80,935.08 : x
  2. Step 2: Convert to fraction form
    134,662.92/185,813.10 = 80,935.08/x
  3. Step 3: Cross multiply
    134,662.92x = 185,813.10 × 80,935.08
  4. Step 4: Simplify right side
    134,662.92x = 15,038,798,113.55
  5. Step 5: Solve for x
    x = 15,038,798,113.55/134,662.92
  6. Step 6: Final answer
    x = 111,677.35

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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.