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Finding the Fourth Proportional to 136,039.40, 204,059.10 and 66,055.40

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Solution

The fourth proportional to 136,039.40, 204,059.10 and 66,055.40 is: 99,083.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,039.40 : 204,059.10 = 66,055.40 : x
  2. Step 2: Convert to fraction form
    136,039.40/204,059.10 = 66,055.40/x
  3. Step 3: Cross multiply
    136,039.40x = 204,059.10 × 66,055.40
  4. Step 4: Simplify right side
    136,039.40x = 13,479,205,474.14
  5. Step 5: Solve for x
    x = 13,479,205,474.14/136,039.40
  6. Step 6: Final answer
    x = 99,083.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.