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Finding the Fourth Proportional to 118,850.40, 164,013.56 and 68,549.40

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Solution

The fourth proportional to 118,850.40, 164,013.56 and 68,549.40 is: 94,598.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,850.40 : 164,013.56 = 68,549.40 : x
  2. Step 2: Convert to fraction form
    118,850.40/164,013.56 = 68,549.40/x
  3. Step 3: Cross multiply
    118,850.40x = 164,013.56 × 68,549.40
  4. Step 4: Simplify right side
    118,850.40x = 11,243,031,129.86
  5. Step 5: Solve for x
    x = 11,243,031,129.86/118,850.40
  6. Step 6: Final answer
    x = 94,598.18

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.