Home / 70,068.38-105,091.26-20,137.08

Finding the Fourth Proportional to 70,068.38, 105,091.26 and 20,137.08

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Solution

The fourth proportional to 70,068.38, 105,091.26 and 20,137.08 is: 30,202.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,068.38 : 105,091.26 = 20,137.08 : x
  2. Step 2: Convert to fraction form
    70,068.38/105,091.26 = 20,137.08/x
  3. Step 3: Cross multiply
    70,068.38x = 105,091.26 × 20,137.08
  4. Step 4: Simplify right side
    70,068.38x = 2,116,231,109.92
  5. Step 5: Solve for x
    x = 2,116,231,109.92/70,068.38
  6. Step 6: Final answer
    x = 30,202.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.