Home / 133,779.69-184,619.49-75,631.80

Finding the Fourth Proportional to 133,779.69, 184,619.49 and 75,631.80

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Solution

The fourth proportional to 133,779.69, 184,619.49 and 75,631.80 is: 104,373.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,779.69 : 184,619.49 = 75,631.80 : x
  2. Step 2: Convert to fraction form
    133,779.69/184,619.49 = 75,631.80/x
  3. Step 3: Cross multiply
    133,779.69x = 184,619.49 × 75,631.80
  4. Step 4: Simplify right side
    133,779.69x = 13,963,104,343.78
  5. Step 5: Solve for x
    x = 13,963,104,343.78/133,779.69
  6. Step 6: Final answer
    x = 104,373.87

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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.