Home / 204,665.29-307,030.74-86,354.06

Finding the Fourth Proportional to 204,665.29, 307,030.74 and 86,354.06

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Solution

The fourth proportional to 204,665.29, 307,030.74 and 86,354.06 is: 129,544.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,665.29 : 307,030.74 = 86,354.06 : x
  2. Step 2: Convert to fraction form
    204,665.29/307,030.74 = 86,354.06/x
  3. Step 3: Cross multiply
    204,665.29x = 307,030.74 × 86,354.06
  4. Step 4: Simplify right side
    204,665.29x = 26,513,350,943.80
  5. Step 5: Solve for x
    x = 26,513,350,943.80/204,665.29
  6. Step 6: Final answer
    x = 129,544.93

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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.