Home / 104,891.51-144,750.57-57,145.21

Finding the Fourth Proportional to 104,891.51, 144,750.57 and 57,145.21

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Solution

The fourth proportional to 104,891.51, 144,750.57 and 57,145.21 is: 78,860.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,891.51 : 144,750.57 = 57,145.21 : x
  2. Step 2: Convert to fraction form
    104,891.51/144,750.57 = 57,145.21/x
  3. Step 3: Cross multiply
    104,891.51x = 144,750.57 × 57,145.21
  4. Step 4: Simplify right side
    104,891.51x = 8,271,801,144.10
  5. Step 5: Solve for x
    x = 8,271,801,144.10/104,891.51
  6. Step 6: Final answer
    x = 78,860.54

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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.