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Finding the Fourth Proportional to 144,309.60, 199,142.69 and 101,351.52

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Solution

The fourth proportional to 144,309.60, 199,142.69 and 101,351.52 is: 139,861.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,309.60 : 199,142.69 = 101,351.52 : x
  2. Step 2: Convert to fraction form
    144,309.60/199,142.69 = 101,351.52/x
  3. Step 3: Cross multiply
    144,309.60x = 199,142.69 × 101,351.52
  4. Step 4: Simplify right side
    144,309.60x = 20,183,413,821.63
  5. Step 5: Solve for x
    x = 20,183,413,821.63/144,309.60
  6. Step 6: Final answer
    x = 139,861.89

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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.