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Finding the Fourth Proportional to 136,490.10, 204,698.70 and 41,720.10

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Solution

The fourth proportional to 136,490.10, 204,698.70 and 41,720.10 is: 62,569.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,490.10 : 204,698.70 = 41,720.10 : x
  2. Step 2: Convert to fraction form
    136,490.10/204,698.70 = 41,720.10/x
  3. Step 3: Cross multiply
    136,490.10x = 204,698.70 × 41,720.10
  4. Step 4: Simplify right side
    136,490.10x = 8,540,050,233.87
  5. Step 5: Solve for x
    x = 8,540,050,233.87/136,490.10
  6. Step 6: Final answer
    x = 62,569.01

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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.