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Finding the Fourth Proportional to 133,333.47, 183,992.67 and 72,892.89

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Solution

The fourth proportional to 133,333.47, 183,992.67 and 72,892.89 is: 100,588.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,333.47 : 183,992.67 = 72,892.89 : x
  2. Step 2: Convert to fraction form
    133,333.47/183,992.67 = 72,892.89/x
  3. Step 3: Cross multiply
    133,333.47x = 183,992.67 × 72,892.89
  4. Step 4: Simplify right side
    133,333.47x = 13,411,757,455.12
  5. Step 5: Solve for x
    x = 13,411,757,455.12/133,333.47
  6. Step 6: Final answer
    x = 100,588.08

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1.5x scale

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.