Home / 103,642.73-143,027.58-58,321.47

Finding the Fourth Proportional to 103,642.73, 143,027.58 and 58,321.47

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Solution

The fourth proportional to 103,642.73, 143,027.58 and 58,321.47 is: 80,483.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,642.73 : 143,027.58 = 58,321.47 : x
  2. Step 2: Convert to fraction form
    103,642.73/143,027.58 = 58,321.47/x
  3. Step 3: Cross multiply
    103,642.73x = 143,027.58 × 58,321.47
  4. Step 4: Simplify right side
    103,642.73x = 8,341,578,716.14
  5. Step 5: Solve for x
    x = 8,341,578,716.14/103,642.73
  6. Step 6: Final answer
    x = 80,483.97

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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.