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Finding the Fourth Proportional to 122,442, 183,654.36 and 60,090

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Solution

The fourth proportional to 122,442, 183,654.36 and 60,090 is: 90,130.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,442 : 183,654.36 = 60,090 : x
  2. Step 2: Convert to fraction form
    122,442/183,654.36 = 60,090/x
  3. Step 3: Cross multiply
    122,442x = 183,654.36 × 60,090
  4. Step 4: Simplify right side
    122,442x = 11,035,790,492.40
  5. Step 5: Solve for x
    x = 11,035,790,492.40/122,442
  6. Step 6: Final answer
    x = 90,130.76

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Why These Related Problems?

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