Home / 111,622.26-154,038.69-61,321.22

Finding the Fourth Proportional to 111,622.26, 154,038.69 and 61,321.22

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Solution

The fourth proportional to 111,622.26, 154,038.69 and 61,321.22 is: 84,623.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,622.26 : 154,038.69 = 61,321.22 : x
  2. Step 2: Convert to fraction form
    111,622.26/154,038.69 = 61,321.22/x
  3. Step 3: Cross multiply
    111,622.26x = 154,038.69 × 61,321.22
  4. Step 4: Simplify right side
    111,622.26x = 9,445,840,398.00
  5. Step 5: Solve for x
    x = 9,445,840,398.00/111,622.26
  6. Step 6: Final answer
    x = 84,623.27

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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.