Home / 70,185.30-105,278.73-20,265.85

Finding the Fourth Proportional to 70,185.30, 105,278.73 and 20,265.85

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Solution

The fourth proportional to 70,185.30, 105,278.73 and 20,265.85 is: 30,399.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,185.30 : 105,278.73 = 20,265.85 : x
  2. Step 2: Convert to fraction form
    70,185.30/105,278.73 = 20,265.85/x
  3. Step 3: Cross multiply
    70,185.30x = 105,278.73 × 20,265.85
  4. Step 4: Simplify right side
    70,185.30x = 2,133,562,950.37
  5. Step 5: Solve for x
    x = 2,133,562,950.37/70,185.30
  6. Step 6: Final answer
    x = 30,399.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.