Home / 103,074.75-142,243.20-58,362.75

Finding the Fourth Proportional to 103,074.75, 142,243.20 and 58,362.75

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Solution

The fourth proportional to 103,074.75, 142,243.20 and 58,362.75 is: 80,540.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,074.75 : 142,243.20 = 58,362.75 : x
  2. Step 2: Convert to fraction form
    103,074.75/142,243.20 = 58,362.75/x
  3. Step 3: Cross multiply
    103,074.75x = 142,243.20 × 58,362.75
  4. Step 4: Simplify right side
    103,074.75x = 8,301,704,320.80
  5. Step 5: Solve for x
    x = 8,301,704,320.80/103,074.75
  6. Step 6: Final answer
    x = 80,540.62

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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.