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Finding the Fourth Proportional to 144,578.34, 199,518.08 and 80,916.13

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Solution

The fourth proportional to 144,578.34, 199,518.08 and 80,916.13 is: 111,664.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,578.34 : 199,518.08 = 80,916.13 : x
  2. Step 2: Convert to fraction form
    144,578.34/199,518.08 = 80,916.13/x
  3. Step 3: Cross multiply
    144,578.34x = 199,518.08 × 80,916.13
  4. Step 4: Simplify right side
    144,578.34x = 16,144,230,898.63
  5. Step 5: Solve for x
    x = 16,144,230,898.63/144,578.34
  6. Step 6: Final answer
    x = 111,664.24

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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.