Home / 206,869.90-310,298.67-57,119.33

Finding the Fourth Proportional to 206,869.90, 310,298.67 and 57,119.33

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Solution

The fourth proportional to 206,869.90, 310,298.67 and 57,119.33 is: 85,677.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,869.90 : 310,298.67 = 57,119.33 : x
  2. Step 2: Convert to fraction form
    206,869.90/310,298.67 = 57,119.33/x
  3. Step 3: Cross multiply
    206,869.90x = 310,298.67 × 57,119.33
  4. Step 4: Simplify right side
    206,869.90x = 17,724,052,130.29
  5. Step 5: Solve for x
    x = 17,724,052,130.29/206,869.90
  6. Step 6: Final answer
    x = 85,677.29

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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.