Home / 103,964.94-143,471.70-56,218.32

Finding the Fourth Proportional to 103,964.94, 143,471.70 and 56,218.32

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Solution

The fourth proportional to 103,964.94, 143,471.70 and 56,218.32 is: 77,581.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,964.94 : 143,471.70 = 56,218.32 : x
  2. Step 2: Convert to fraction form
    103,964.94/143,471.70 = 56,218.32/x
  3. Step 3: Cross multiply
    103,964.94x = 143,471.70 × 56,218.32
  4. Step 4: Simplify right side
    103,964.94x = 8,065,737,941.54
  5. Step 5: Solve for x
    x = 8,065,737,941.54/103,964.94
  6. Step 6: Final answer
    x = 77,581.33

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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.