Home / 103,971.09-143,480.16-56,224.43

Finding the Fourth Proportional to 103,971.09, 143,480.16 and 56,224.43

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Solution

The fourth proportional to 103,971.09, 143,480.16 and 56,224.43 is: 77,589.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,971.09 : 143,480.16 = 56,224.43 : x
  2. Step 2: Convert to fraction form
    103,971.09/143,480.16 = 56,224.43/x
  3. Step 3: Cross multiply
    103,971.09x = 143,480.16 × 56,224.43
  4. Step 4: Simplify right side
    103,971.09x = 8,067,090,032.96
  5. Step 5: Solve for x
    x = 8,067,090,032.96/103,971.09
  6. Step 6: Final answer
    x = 77,589.74

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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.