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Finding the Fourth Proportional to 104,200, 143,798.96 and 58,879.92

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Solution

The fourth proportional to 104,200, 143,798.96 and 58,879.92 is: 81,255.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,200 : 143,798.96 = 58,879.92 : x
  2. Step 2: Convert to fraction form
    104,200/143,798.96 = 58,879.92/x
  3. Step 3: Cross multiply
    104,200x = 143,798.96 × 58,879.92
  4. Step 4: Simplify right side
    104,200x = 8,466,871,260.88
  5. Step 5: Solve for x
    x = 8,466,871,260.88/104,200
  6. Step 6: Final answer
    x = 81,255.96

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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.