Home / 103,873.29-143,345.22-56,126.64

Finding the Fourth Proportional to 103,873.29, 143,345.22 and 56,126.64

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Solution

The fourth proportional to 103,873.29, 143,345.22 and 56,126.64 is: 77,454.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,873.29 : 143,345.22 = 56,126.64 : x
  2. Step 2: Convert to fraction form
    103,873.29/143,345.22 = 56,126.64/x
  3. Step 3: Cross multiply
    103,873.29x = 143,345.22 × 56,126.64
  4. Step 4: Simplify right side
    103,873.29x = 8,045,485,558.66
  5. Step 5: Solve for x
    x = 8,045,485,558.66/103,873.29
  6. Step 6: Final answer
    x = 77,454.81

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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.