Home / 144,039.36-198,787.50-79,520.16

Finding the Fourth Proportional to 144,039.36, 198,787.50 and 79,520.16

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Solution

The fourth proportional to 144,039.36, 198,787.50 and 79,520.16 is: 109,745.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,039.36 : 198,787.50 = 79,520.16 : x
  2. Step 2: Convert to fraction form
    144,039.36/198,787.50 = 79,520.16/x
  3. Step 3: Cross multiply
    144,039.36x = 198,787.50 × 79,520.16
  4. Step 4: Simplify right side
    144,039.36x = 15,807,613,806
  5. Step 5: Solve for x
    x = 15,807,613,806/144,039.36
  6. Step 6: Final answer
    x = 109,745.10

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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.