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Finding the Fourth Proportional to 136,291.59, 188,082.40 and 75,860.94

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Solution

The fourth proportional to 136,291.59, 188,082.40 and 75,860.94 is: 104,688.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,291.59 : 188,082.40 = 75,860.94 : x
  2. Step 2: Convert to fraction form
    136,291.59/188,082.40 = 75,860.94/x
  3. Step 3: Cross multiply
    136,291.59x = 188,082.40 × 75,860.94
  4. Step 4: Simplify right side
    136,291.59x = 14,268,106,531.39
  5. Step 5: Solve for x
    x = 14,268,106,531.39/136,291.59
  6. Step 6: Final answer
    x = 104,688.10

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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.