Home / 105,183.63-145,153.94-57,436.98

Finding the Fourth Proportional to 105,183.63, 145,153.94 and 57,436.98

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Solution

The fourth proportional to 105,183.63, 145,153.94 and 57,436.98 is: 79,263.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,183.63 : 145,153.94 = 57,436.98 : x
  2. Step 2: Convert to fraction form
    105,183.63/145,153.94 = 57,436.98/x
  3. Step 3: Cross multiply
    105,183.63x = 145,153.94 × 57,436.98
  4. Step 4: Simplify right side
    105,183.63x = 8,337,203,222.93
  5. Step 5: Solve for x
    x = 8,337,203,222.93/105,183.63
  6. Step 6: Final answer
    x = 79,263.32

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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.