Home / 103,749.56-143,172.84-58,427.66

Finding the Fourth Proportional to 103,749.56, 143,172.84 and 58,427.66

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Solution

The fourth proportional to 103,749.56, 143,172.84 and 58,427.66 is: 80,629.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,749.56 : 143,172.84 = 58,427.66 : x
  2. Step 2: Convert to fraction form
    103,749.56/143,172.84 = 58,427.66/x
  3. Step 3: Cross multiply
    103,749.56x = 143,172.84 × 58,427.66
  4. Step 4: Simplify right side
    103,749.56x = 8,365,254,016.75
  5. Step 5: Solve for x
    x = 8,365,254,016.75/103,749.56
  6. Step 6: Final answer
    x = 80,629.30

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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.