Home / 104,605.21-144,355.53-56,858.75

Finding the Fourth Proportional to 104,605.21, 144,355.53 and 56,858.75

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Solution

The fourth proportional to 104,605.21, 144,355.53 and 56,858.75 is: 78,465.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,605.21 : 144,355.53 = 56,858.75 : x
  2. Step 2: Convert to fraction form
    104,605.21/144,355.53 = 56,858.75/x
  3. Step 3: Cross multiply
    104,605.21x = 144,355.53 × 56,858.75
  4. Step 4: Simplify right side
    104,605.21x = 8,207,874,991.39
  5. Step 5: Solve for x
    x = 8,207,874,991.39/104,605.21
  6. Step 6: Final answer
    x = 78,465.26

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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.