Home / 202,439.49-279,364.85-111,801.57

Finding the Fourth Proportional to 202,439.49, 279,364.85 and 111,801.57

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Solution

The fourth proportional to 202,439.49, 279,364.85 and 111,801.57 is: 154,285.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,439.49 : 279,364.85 = 111,801.57 : x
  2. Step 2: Convert to fraction form
    202,439.49/279,364.85 = 111,801.57/x
  3. Step 3: Cross multiply
    202,439.49x = 279,364.85 × 111,801.57
  4. Step 4: Simplify right side
    202,439.49x = 31,233,426,876.98
  5. Step 5: Solve for x
    x = 31,233,426,876.98/202,439.49
  6. Step 6: Final answer
    x = 154,285.25

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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.