Home / 146,057.03-201,559.29-78,989.03

Finding the Fourth Proportional to 146,057.03, 201,559.29 and 78,989.03

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Solution

The fourth proportional to 146,057.03, 201,559.29 and 78,989.03 is: 109,005.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,057.03 : 201,559.29 = 78,989.03 : x
  2. Step 2: Convert to fraction form
    146,057.03/201,559.29 = 78,989.03/x
  3. Step 3: Cross multiply
    146,057.03x = 201,559.29 × 78,989.03
  4. Step 4: Simplify right side
    146,057.03x = 15,920,971,796.79
  5. Step 5: Solve for x
    x = 15,920,971,796.79/146,057.03
  6. Step 6: Final answer
    x = 109,005.18

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Why These Related Problems?

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