Home / 203,916.87-281,507.53-127,478.45

Finding the Fourth Proportional to 203,916.87, 281,507.53 and 127,478.45

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Solution

The fourth proportional to 203,916.87, 281,507.53 and 127,478.45 is: 175,984.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,916.87 : 281,507.53 = 127,478.45 : x
  2. Step 2: Convert to fraction form
    203,916.87/281,507.53 = 127,478.45/x
  3. Step 3: Cross multiply
    203,916.87x = 281,507.53 × 127,478.45
  4. Step 4: Simplify right side
    203,916.87x = 35,886,143,587.73
  5. Step 5: Solve for x
    x = 35,886,143,587.73/203,916.87
  6. Step 6: Final answer
    x = 175,984.18

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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.