Home / 168,383.10-232,398.78-100,404.45

Finding the Fourth Proportional to 168,383.10, 232,398.78 and 100,404.45

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Solution

The fourth proportional to 168,383.10, 232,398.78 and 100,404.45 is: 138,576.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,383.10 : 232,398.78 = 100,404.45 : x
  2. Step 2: Convert to fraction form
    168,383.10/232,398.78 = 100,404.45/x
  3. Step 3: Cross multiply
    168,383.10x = 232,398.78 × 100,404.45
  4. Step 4: Simplify right side
    168,383.10x = 23,333,871,686.57
  5. Step 5: Solve for x
    x = 23,333,871,686.57/168,383.10
  6. Step 6: Final answer
    x = 138,576.09

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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.