Home / 133,881.12-184,735.08-77,281.56

Finding the Fourth Proportional to 133,881.12, 184,735.08 and 77,281.56

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Solution

The fourth proportional to 133,881.12, 184,735.08 and 77,281.56 is: 106,636.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,881.12 : 184,735.08 = 77,281.56 : x
  2. Step 2: Convert to fraction form
    133,881.12/184,735.08 = 77,281.56/x
  3. Step 3: Cross multiply
    133,881.12x = 184,735.08 × 77,281.56
  4. Step 4: Simplify right side
    133,881.12x = 14,276,615,169.12
  5. Step 5: Solve for x
    x = 14,276,615,169.12/133,881.12
  6. Step 6: Final answer
    x = 106,636.51

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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.