Home / 261,183-392,137.68-134,916.56

Finding the Fourth Proportional to 261,183, 392,137.68 and 134,916.56

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Solution

The fourth proportional to 261,183, 392,137.68 and 134,916.56 is: 202,562.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,183 : 392,137.68 = 134,916.56 : x
  2. Step 2: Convert to fraction form
    261,183/392,137.68 = 134,916.56/x
  3. Step 3: Cross multiply
    261,183x = 392,137.68 × 134,916.56
  4. Step 4: Simplify right side
    261,183x = 52,905,866,831.98
  5. Step 5: Solve for x
    x = 52,905,866,831.98/261,183
  6. Step 6: Final answer
    x = 202,562.44

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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.