Home / 103,971.22-143,479.75-56,224.45

Finding the Fourth Proportional to 103,971.22, 143,479.75 and 56,224.45

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Solution

The fourth proportional to 103,971.22, 143,479.75 and 56,224.45 is: 77,589.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,971.22 : 143,479.75 = 56,224.45 : x
  2. Step 2: Convert to fraction form
    103,971.22/143,479.75 = 56,224.45/x
  3. Step 3: Cross multiply
    103,971.22x = 143,479.75 × 56,224.45
  4. Step 4: Simplify right side
    103,971.22x = 8,067,070,029.89
  5. Step 5: Solve for x
    x = 8,067,070,029.89/103,971.22
  6. Step 6: Final answer
    x = 77,589.45

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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.