Home / 133,821.12-184,318.20-99,720.24

Finding the Fourth Proportional to 133,821.12, 184,318.20 and 99,720.24

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Solution

The fourth proportional to 133,821.12, 184,318.20 and 99,720.24 is: 137,349.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,821.12 : 184,318.20 = 99,720.24 : x
  2. Step 2: Convert to fraction form
    133,821.12/184,318.20 = 99,720.24/x
  3. Step 3: Cross multiply
    133,821.12x = 184,318.20 × 99,720.24
  4. Step 4: Simplify right side
    133,821.12x = 18,380,255,140.37
  5. Step 5: Solve for x
    x = 18,380,255,140.37/133,821.12
  6. Step 6: Final answer
    x = 137,349.43

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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.