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Finding the Fourth Proportional to 202,725.67, 279,763.09 and 112,083.15

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Solution

The fourth proportional to 202,725.67, 279,763.09 and 112,083.15 is: 154,675.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,725.67 : 279,763.09 = 112,083.15 : x
  2. Step 2: Convert to fraction form
    202,725.67/279,763.09 = 112,083.15/x
  3. Step 3: Cross multiply
    202,725.67x = 279,763.09 × 112,083.15
  4. Step 4: Simplify right side
    202,725.67x = 31,356,728,973.30
  5. Step 5: Solve for x
    x = 31,356,728,973.30/202,725.67
  6. Step 6: Final answer
    x = 154,675.67

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1.5x scale

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.