Home / 129,681.69-179,005.38-75,984.09

Finding the Fourth Proportional to 129,681.69, 179,005.38 and 75,984.09

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Solution

The fourth proportional to 129,681.69, 179,005.38 and 75,984.09 is: 104,884.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,681.69 : 179,005.38 = 75,984.09 : x
  2. Step 2: Convert to fraction form
    129,681.69/179,005.38 = 75,984.09/x
  3. Step 3: Cross multiply
    129,681.69x = 179,005.38 × 75,984.09
  4. Step 4: Simplify right side
    129,681.69x = 13,601,560,904.40
  5. Step 5: Solve for x
    x = 13,601,560,904.40/129,681.69
  6. Step 6: Final answer
    x = 104,884.20

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.