Home / 104,289.60-143,919.36-56,542.80

Finding the Fourth Proportional to 104,289.60, 143,919.36 and 56,542.80

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Solution

The fourth proportional to 104,289.60, 143,919.36 and 56,542.80 is: 78,028.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,289.60 : 143,919.36 = 56,542.80 : x
  2. Step 2: Convert to fraction form
    104,289.60/143,919.36 = 56,542.80/x
  3. Step 3: Cross multiply
    104,289.60x = 143,919.36 × 56,542.80
  4. Step 4: Simplify right side
    104,289.60x = 8,137,603,588.61
  5. Step 5: Solve for x
    x = 8,137,603,588.61/104,289.60
  6. Step 6: Final answer
    x = 78,028.91

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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.