Home / 203,211.12-304,911.25-90,967.27

Finding the Fourth Proportional to 203,211.12, 304,911.25 and 90,967.27

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Solution

The fourth proportional to 203,211.12, 304,911.25 and 90,967.27 is: 136,493.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,211.12 : 304,911.25 = 90,967.27 : x
  2. Step 2: Convert to fraction form
    203,211.12/304,911.25 = 90,967.27/x
  3. Step 3: Cross multiply
    203,211.12x = 304,911.25 × 90,967.27
  4. Step 4: Simplify right side
    203,211.12x = 27,736,944,312.23
  5. Step 5: Solve for x
    x = 27,736,944,312.23/203,211.12
  6. Step 6: Final answer
    x = 136,493.24

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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.