Home / 103,682.12-143,124.66-70,167.56

Finding the Fourth Proportional to 103,682.12, 143,124.66 and 70,167.56

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Solution

The fourth proportional to 103,682.12, 143,124.66 and 70,167.56 is: 96,860.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,682.12 : 143,124.66 = 70,167.56 : x
  2. Step 2: Convert to fraction form
    103,682.12/143,124.66 = 70,167.56/x
  3. Step 3: Cross multiply
    103,682.12x = 143,124.66 × 70,167.56
  4. Step 4: Simplify right side
    103,682.12x = 10,042,708,168.03
  5. Step 5: Solve for x
    x = 10,042,708,168.03/103,682.12
  6. Step 6: Final answer
    x = 96,860.56

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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.