Home / 104,960.14-144,865.21-72,782.08

Finding the Fourth Proportional to 104,960.14, 144,865.21 and 72,782.08

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Solution

The fourth proportional to 104,960.14, 144,865.21 and 72,782.08 is: 100,453.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,960.14 : 144,865.21 = 72,782.08 : x
  2. Step 2: Convert to fraction form
    104,960.14/144,865.21 = 72,782.08/x
  3. Step 3: Cross multiply
    104,960.14x = 144,865.21 × 72,782.08
  4. Step 4: Simplify right side
    104,960.14x = 10,543,590,579.11
  5. Step 5: Solve for x
    x = 10,543,590,579.11/104,960.14
  6. Step 6: Final answer
    x = 100,453.29

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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.