Home / 117,982.81-177,000.12-86,723.29

Finding the Fourth Proportional to 117,982.81, 177,000.12 and 86,723.29

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Solution

The fourth proportional to 117,982.81, 177,000.12 and 86,723.29 is: 130,103.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,982.81 : 177,000.12 = 86,723.29 : x
  2. Step 2: Convert to fraction form
    117,982.81/177,000.12 = 86,723.29/x
  3. Step 3: Cross multiply
    117,982.81x = 177,000.12 × 86,723.29
  4. Step 4: Simplify right side
    117,982.81x = 15,350,032,736.79
  5. Step 5: Solve for x
    x = 15,350,032,736.79/117,982.81
  6. Step 6: Final answer
    x = 130,103.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.