Home / 204,813.81-307,360.04-125,686.53

Finding the Fourth Proportional to 204,813.81, 307,360.04 and 125,686.53

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Solution

The fourth proportional to 204,813.81, 307,360.04 and 125,686.53 is: 188,615.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,813.81 : 307,360.04 = 125,686.53 : x
  2. Step 2: Convert to fraction form
    204,813.81/307,360.04 = 125,686.53/x
  3. Step 3: Cross multiply
    204,813.81x = 307,360.04 × 125,686.53
  4. Step 4: Simplify right side
    204,813.81x = 38,631,016,259.83
  5. Step 5: Solve for x
    x = 38,631,016,259.83/204,813.81
  6. Step 6: Final answer
    x = 188,615.29

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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.