Home / 133,789.13-184,621.89-76,417.18

Finding the Fourth Proportional to 133,789.13, 184,621.89 and 76,417.18

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Solution

The fourth proportional to 133,789.13, 184,621.89 and 76,417.18 is: 105,451.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,789.13 : 184,621.89 = 76,417.18 : x
  2. Step 2: Convert to fraction form
    133,789.13/184,621.89 = 76,417.18/x
  3. Step 3: Cross multiply
    133,789.13x = 184,621.89 × 76,417.18
  4. Step 4: Simplify right side
    133,789.13x = 14,108,284,200.07
  5. Step 5: Solve for x
    x = 14,108,284,200.07/133,789.13
  6. Step 6: Final answer
    x = 105,451.65

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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.