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Finding the Fourth Proportional to 136,404.01, 188,243.40 and 75,974.68

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Solution

The fourth proportional to 136,404.01, 188,243.40 and 75,974.68 is: 104,848.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,404.01 : 188,243.40 = 75,974.68 : x
  2. Step 2: Convert to fraction form
    136,404.01/188,243.40 = 75,974.68/x
  3. Step 3: Cross multiply
    136,404.01x = 188,243.40 × 75,974.68
  4. Step 4: Simplify right side
    136,404.01x = 14,301,732,077.11
  5. Step 5: Solve for x
    x = 14,301,732,077.11/136,404.01
  6. Step 6: Final answer
    x = 104,848.33

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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.