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Finding the Fourth Proportional to 133,937, 184,841.70 and 74,321

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Solution

The fourth proportional to 133,937, 184,841.70 and 74,321 is: 102,567.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,937 : 184,841.70 = 74,321 : x
  2. Step 2: Convert to fraction form
    133,937/184,841.70 = 74,321/x
  3. Step 3: Cross multiply
    133,937x = 184,841.70 × 74,321
  4. Step 4: Simplify right side
    133,937x = 13,737,619,985.70
  5. Step 5: Solve for x
    x = 13,737,619,985.70/133,937
  6. Step 6: Final answer
    x = 102,567.77

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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.