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Finding the Fourth Proportional to 133,332.96, 184,005.20 and 72,900.00

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Solution

The fourth proportional to 133,332.96, 184,005.20 and 72,900.00 is: 100,605.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,332.96 : 184,005.20 = 72,900.00 : x
  2. Step 2: Convert to fraction form
    133,332.96/184,005.20 = 72,900.00/x
  3. Step 3: Cross multiply
    133,332.96x = 184,005.20 × 72,900.00
  4. Step 4: Simplify right side
    133,332.96x = 13,413,978,572.23
  5. Step 5: Solve for x
    x = 13,413,978,572.23/133,332.96
  6. Step 6: Final answer
    x = 100,605.12

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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.