Home / 104,139.14-143,712.09-56,392.54

Finding the Fourth Proportional to 104,139.14, 143,712.09 and 56,392.54

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Solution

The fourth proportional to 104,139.14, 143,712.09 and 56,392.54 is: 77,821.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,139.14 : 143,712.09 = 56,392.54 : x
  2. Step 2: Convert to fraction form
    104,139.14/143,712.09 = 56,392.54/x
  3. Step 3: Cross multiply
    104,139.14x = 143,712.09 × 56,392.54
  4. Step 4: Simplify right side
    104,139.14x = 8,104,289,424.53
  5. Step 5: Solve for x
    x = 8,104,289,424.53/104,139.14
  6. Step 6: Final answer
    x = 77,821.75

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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.