Home / 133,783.12-184,629-74,167.12

Finding the Fourth Proportional to 133,783.12, 184,629 and 74,167.12

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Solution

The fourth proportional to 133,783.12, 184,629 and 74,167.12 is: 102,355.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,783.12 : 184,629 = 74,167.12 : x
  2. Step 2: Convert to fraction form
    133,783.12/184,629 = 74,167.12/x
  3. Step 3: Cross multiply
    133,783.12x = 184,629 × 74,167.12
  4. Step 4: Simplify right side
    133,783.12x = 13,693,401,198.48
  5. Step 5: Solve for x
    x = 13,693,401,198.48/133,783.12
  6. Step 6: Final answer
    x = 102,355.22

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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.