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Finding the Fourth Proportional to 144,690.60, 217,007.10 and 69,810.60

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Solution

The fourth proportional to 144,690.60, 217,007.10 and 69,810.60 is: 104,702.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,690.60 : 217,007.10 = 69,810.60 : x
  2. Step 2: Convert to fraction form
    144,690.60/217,007.10 = 69,810.60/x
  3. Step 3: Cross multiply
    144,690.60x = 217,007.10 × 69,810.60
  4. Step 4: Simplify right side
    144,690.60x = 15,149,395,855.26
  5. Step 5: Solve for x
    x = 15,149,395,855.26/144,690.60
  6. Step 6: Final answer
    x = 104,702.00

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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.