Home / 206,972.40-285,618.51-115,088.03

Finding the Fourth Proportional to 206,972.40, 285,618.51 and 115,088.03

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Solution

The fourth proportional to 206,972.40, 285,618.51 and 115,088.03 is: 158,819.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,972.40 : 285,618.51 = 115,088.03 : x
  2. Step 2: Convert to fraction form
    206,972.40/285,618.51 = 115,088.03/x
  3. Step 3: Cross multiply
    206,972.40x = 285,618.51 × 115,088.03
  4. Step 4: Simplify right side
    206,972.40x = 32,871,270,219.34
  5. Step 5: Solve for x
    x = 32,871,270,219.34/206,972.40
  6. Step 6: Final answer
    x = 158,819.58

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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.