Home / 203,623.35-305,312.31-91,283.24

Finding the Fourth Proportional to 203,623.35, 305,312.31 and 91,283.24

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Solution

The fourth proportional to 203,623.35, 305,312.31 and 91,283.24 is: 136,869.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,623.35 : 305,312.31 = 91,283.24 : x
  2. Step 2: Convert to fraction form
    203,623.35/305,312.31 = 91,283.24/x
  3. Step 3: Cross multiply
    203,623.35x = 305,312.31 × 91,283.24
  4. Step 4: Simplify right side
    203,623.35x = 27,869,895,342.12
  5. Step 5: Solve for x
    x = 27,869,895,342.12/203,623.35
  6. Step 6: Final answer
    x = 136,869.84

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1.5x scale

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.