Home / 104,786.85-144,603.09-57,039.18

Finding the Fourth Proportional to 104,786.85, 144,603.09 and 57,039.18

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Solution

The fourth proportional to 104,786.85, 144,603.09 and 57,039.18 is: 78,712.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,786.85 : 144,603.09 = 57,039.18 : x
  2. Step 2: Convert to fraction form
    104,786.85/144,603.09 = 57,039.18/x
  3. Step 3: Cross multiply
    104,786.85x = 144,603.09 × 57,039.18
  4. Step 4: Simplify right side
    104,786.85x = 8,248,041,679.07
  5. Step 5: Solve for x
    x = 8,248,041,679.07/104,786.85
  6. Step 6: Final answer
    x = 78,712.56

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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.