Home / 103,749.80-143,172.84-58,427.60

Finding the Fourth Proportional to 103,749.80, 143,172.84 and 58,427.60

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Solution

The fourth proportional to 103,749.80, 143,172.84 and 58,427.60 is: 80,629.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,749.80 : 143,172.84 = 58,427.60 : x
  2. Step 2: Convert to fraction form
    103,749.80/143,172.84 = 58,427.60/x
  3. Step 3: Cross multiply
    103,749.80x = 143,172.84 × 58,427.60
  4. Step 4: Simplify right side
    103,749.80x = 8,365,245,426.38
  5. Step 5: Solve for x
    x = 8,365,245,426.38/103,749.80
  6. Step 6: Final answer
    x = 80,629.03

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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.