Home / 104,772.82-144,651.09-72,122.98

Finding the Fourth Proportional to 104,772.82, 144,651.09 and 72,122.98

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Solution

The fourth proportional to 104,772.82, 144,651.09 and 72,122.98 is: 99,574.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,772.82 : 144,651.09 = 72,122.98 : x
  2. Step 2: Convert to fraction form
    104,772.82/144,651.09 = 72,122.98/x
  3. Step 3: Cross multiply
    104,772.82x = 144,651.09 × 72,122.98
  4. Step 4: Simplify right side
    104,772.82x = 10,432,667,671.05
  5. Step 5: Solve for x
    x = 10,432,667,671.05/104,772.82
  6. Step 6: Final answer
    x = 99,574.18

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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.