Home / 182,123.90-251,324.77-100,455.39

Finding the Fourth Proportional to 182,123.90, 251,324.77 and 100,455.39

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Solution

The fourth proportional to 182,123.90, 251,324.77 and 100,455.39 is: 138,625.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,123.90 : 251,324.77 = 100,455.39 : x
  2. Step 2: Convert to fraction form
    182,123.90/251,324.77 = 100,455.39/x
  3. Step 3: Cross multiply
    182,123.90x = 251,324.77 × 100,455.39
  4. Step 4: Simplify right side
    182,123.90x = 25,246,926,342.03
  5. Step 5: Solve for x
    x = 25,246,926,342.03/182,123.90
  6. Step 6: Final answer
    x = 138,625.01

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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.