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Finding the Fourth Proportional to 103,798.98, 143,205.57 and 61,327.62

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Solution

The fourth proportional to 103,798.98, 143,205.57 and 61,327.62 is: 84,610.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,798.98 : 143,205.57 = 61,327.62 : x
  2. Step 2: Convert to fraction form
    103,798.98/143,205.57 = 61,327.62/x
  3. Step 3: Cross multiply
    103,798.98x = 143,205.57 × 61,327.62
  4. Step 4: Simplify right side
    103,798.98x = 8,782,456,778.84
  5. Step 5: Solve for x
    x = 8,782,456,778.84/103,798.98
  6. Step 6: Final answer
    x = 84,610.24

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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.