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Finding the Fourth Proportional to 133,628.34, 184,406.80 and 72,374.34

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Solution

The fourth proportional to 133,628.34, 184,406.80 and 72,374.34 is: 99,876.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,628.34 : 184,406.80 = 72,374.34 : x
  2. Step 2: Convert to fraction form
    133,628.34/184,406.80 = 72,374.34/x
  3. Step 3: Cross multiply
    133,628.34x = 184,406.80 × 72,374.34
  4. Step 4: Simplify right side
    133,628.34x = 13,346,320,441.51
  5. Step 5: Solve for x
    x = 13,346,320,441.51/133,628.34
  6. Step 6: Final answer
    x = 99,876.42

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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.