Home / 111,640.10-154,052.21-63,232.35

Finding the Fourth Proportional to 111,640.10, 154,052.21 and 63,232.35

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Solution

The fourth proportional to 111,640.10, 154,052.21 and 63,232.35 is: 87,254.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,640.10 : 154,052.21 = 63,232.35 : x
  2. Step 2: Convert to fraction form
    111,640.10/154,052.21 = 63,232.35/x
  3. Step 3: Cross multiply
    111,640.10x = 154,052.21 × 63,232.35
  4. Step 4: Simplify right side
    111,640.10x = 9,741,082,944.83
  5. Step 5: Solve for x
    x = 9,741,082,944.83/111,640.10
  6. Step 6: Final answer
    x = 87,254.34

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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.