Home / 103,804.11-143,249.67-56,057.45

Finding the Fourth Proportional to 103,804.11, 143,249.67 and 56,057.45

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Solution

The fourth proportional to 103,804.11, 143,249.67 and 56,057.45 is: 77,359.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,804.11 : 143,249.67 = 56,057.45 : x
  2. Step 2: Convert to fraction form
    103,804.11/143,249.67 = 56,057.45/x
  3. Step 3: Cross multiply
    103,804.11x = 143,249.67 × 56,057.45
  4. Step 4: Simplify right side
    103,804.11x = 8,030,211,092.86
  5. Step 5: Solve for x
    x = 8,030,211,092.86/103,804.11
  6. Step 6: Final answer
    x = 77,359.28

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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.