Home / 70,160.21-105,215.56-20,226.85

Finding the Fourth Proportional to 70,160.21, 105,215.56 and 20,226.85

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Solution

The fourth proportional to 70,160.21, 105,215.56 and 20,226.85 is: 30,333.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,160.21 : 105,215.56 = 20,226.85 : x
  2. Step 2: Convert to fraction form
    70,160.21/105,215.56 = 20,226.85/x
  3. Step 3: Cross multiply
    70,160.21x = 105,215.56 × 20,226.85
  4. Step 4: Simplify right side
    70,160.21x = 2,128,179,036.18
  5. Step 5: Solve for x
    x = 2,128,179,036.18/70,160.21
  6. Step 6: Final answer
    x = 30,333.13

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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.