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Finding the Fourth Proportional to 78,778, 118,167 and 23,374

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Solution

The fourth proportional to 78,778, 118,167 and 23,374 is: 35,061

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,778 : 118,167 = 23,374 : x
  2. Step 2: Convert to fraction form
    78,778/118,167 = 23,374/x
  3. Step 3: Cross multiply
    78,778x = 118,167 × 23,374
  4. Step 4: Simplify right side
    78,778x = 2,762,035,458
  5. Step 5: Solve for x
    x = 2,762,035,458/78,778
  6. Step 6: Final answer
    x = 35,061

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.