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Finding the Fourth Proportional to 133,662.96, 184,417.56 and 105,280.56

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Solution

The fourth proportional to 133,662.96, 184,417.56 and 105,280.56 is: 145,257.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,662.96 : 184,417.56 = 105,280.56 : x
  2. Step 2: Convert to fraction form
    133,662.96/184,417.56 = 105,280.56/x
  3. Step 3: Cross multiply
    133,662.96x = 184,417.56 × 105,280.56
  4. Step 4: Simplify right side
    133,662.96x = 19,415,583,990.63
  5. Step 5: Solve for x
    x = 19,415,583,990.63/133,662.96
  6. Step 6: Final answer
    x = 145,257.77

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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.