Home / 102,074.42-140,867.38-56,757.05

Finding the Fourth Proportional to 102,074.42, 140,867.38 and 56,757.05

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Solution

The fourth proportional to 102,074.42, 140,867.38 and 56,757.05 is: 78,327.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,074.42 : 140,867.38 = 56,757.05 : x
  2. Step 2: Convert to fraction form
    102,074.42/140,867.38 = 56,757.05/x
  3. Step 3: Cross multiply
    102,074.42x = 140,867.38 × 56,757.05
  4. Step 4: Simplify right side
    102,074.42x = 7,995,217,353.14
  5. Step 5: Solve for x
    x = 7,995,217,353.14/102,074.42
  6. Step 6: Final answer
    x = 78,327.34

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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.