Home / 103,919-143,422.26-58,606.28

Finding the Fourth Proportional to 103,919, 143,422.26 and 58,606.28

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Solution

The fourth proportional to 103,919, 143,422.26 and 58,606.28 is: 80,884.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,919 : 143,422.26 = 58,606.28 : x
  2. Step 2: Convert to fraction form
    103,919/143,422.26 = 58,606.28/x
  3. Step 3: Cross multiply
    103,919x = 143,422.26 × 58,606.28
  4. Step 4: Simplify right side
    103,919x = 8,405,445,127.79
  5. Step 5: Solve for x
    x = 8,405,445,127.79/103,919
  6. Step 6: Final answer
    x = 80,884.58

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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.