Home / 133,695.20-184,430.40-90,660.14

Finding the Fourth Proportional to 133,695.20, 184,430.40 and 90,660.14

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Solution

The fourth proportional to 133,695.20, 184,430.40 and 90,660.14 is: 125,064.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,695.20 : 184,430.40 = 90,660.14 : x
  2. Step 2: Convert to fraction form
    133,695.20/184,430.40 = 90,660.14/x
  3. Step 3: Cross multiply
    133,695.20x = 184,430.40 × 90,660.14
  4. Step 4: Simplify right side
    133,695.20x = 16,720,485,884.26
  5. Step 5: Solve for x
    x = 16,720,485,884.26/133,695.20
  6. Step 6: Final answer
    x = 125,064.22

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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.