Home / 103,920.24-143,409.90-56,173.56

Finding the Fourth Proportional to 103,920.24, 143,409.90 and 56,173.56

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Solution

The fourth proportional to 103,920.24, 143,409.90 and 56,173.56 is: 77,519.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,920.24 : 143,409.90 = 56,173.56 : x
  2. Step 2: Convert to fraction form
    103,920.24/143,409.90 = 56,173.56/x
  3. Step 3: Cross multiply
    103,920.24x = 143,409.90 × 56,173.56
  4. Step 4: Simplify right side
    103,920.24x = 8,055,844,622.24
  5. Step 5: Solve for x
    x = 8,055,844,622.24/103,920.24
  6. Step 6: Final answer
    x = 77,519.50

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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.