Home / 103,676.12-143,116.38-70,161.56

Finding the Fourth Proportional to 103,676.12, 143,116.38 and 70,161.56

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Solution

The fourth proportional to 103,676.12, 143,116.38 and 70,161.56 is: 96,852.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,676.12 : 143,116.38 = 70,161.56 : x
  2. Step 2: Convert to fraction form
    103,676.12/143,116.38 = 70,161.56/x
  3. Step 3: Cross multiply
    103,676.12x = 143,116.38 × 70,161.56
  4. Step 4: Simplify right side
    103,676.12x = 10,041,268,482.35
  5. Step 5: Solve for x
    x = 10,041,268,482.35/103,676.12
  6. Step 6: Final answer
    x = 96,852.28

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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.