Home / 111,923.16-154,453.68-61,622.16

Finding the Fourth Proportional to 111,923.16, 154,453.68 and 61,622.16

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Solution

The fourth proportional to 111,923.16, 154,453.68 and 61,622.16 is: 85,038.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,923.16 : 154,453.68 = 61,622.16 : x
  2. Step 2: Convert to fraction form
    111,923.16/154,453.68 = 61,622.16/x
  3. Step 3: Cross multiply
    111,923.16x = 154,453.68 × 61,622.16
  4. Step 4: Simplify right side
    111,923.16x = 9,517,769,381.55
  5. Step 5: Solve for x
    x = 9,517,769,381.55/111,923.16
  6. Step 6: Final answer
    x = 85,038.43

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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.