Home / 104,855.87-144,701.07-57,109.21

Finding the Fourth Proportional to 104,855.87, 144,701.07 and 57,109.21

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Solution

The fourth proportional to 104,855.87, 144,701.07 and 57,109.21 is: 78,810.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,855.87 : 144,701.07 = 57,109.21 : x
  2. Step 2: Convert to fraction form
    104,855.87/144,701.07 = 57,109.21/x
  3. Step 3: Cross multiply
    104,855.87x = 144,701.07 × 57,109.21
  4. Step 4: Simplify right side
    104,855.87x = 8,263,764,476.30
  5. Step 5: Solve for x
    x = 8,263,764,476.30/104,855.87
  6. Step 6: Final answer
    x = 78,810.70

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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.