Home / 103,804.08-143,249.63-56,057.43

Finding the Fourth Proportional to 103,804.08, 143,249.63 and 56,057.43

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Solution

The fourth proportional to 103,804.08, 143,249.63 and 56,057.43 is: 77,359.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,804.08 : 143,249.63 = 56,057.43 : x
  2. Step 2: Convert to fraction form
    103,804.08/143,249.63 = 56,057.43/x
  3. Step 3: Cross multiply
    103,804.08x = 143,249.63 × 56,057.43
  4. Step 4: Simplify right side
    103,804.08x = 8,030,205,761.76
  5. Step 5: Solve for x
    x = 8,030,205,761.76/103,804.08
  6. Step 6: Final answer
    x = 77,359.25

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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.