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Finding the Fourth Proportional to 122,963.40, 184,445.10 and 76,307.40

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Solution

The fourth proportional to 122,963.40, 184,445.10 and 76,307.40 is: 114,461.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,963.40 : 184,445.10 = 76,307.40 : x
  2. Step 2: Convert to fraction form
    122,963.40/184,445.10 = 76,307.40/x
  3. Step 3: Cross multiply
    122,963.40x = 184,445.10 × 76,307.40
  4. Step 4: Simplify right side
    122,963.40x = 14,074,526,023.74
  5. Step 5: Solve for x
    x = 14,074,526,023.74/122,963.40
  6. Step 6: Final answer
    x = 114,461.10

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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.