Home / 160,819.42-221,785.58-100,395.67

Finding the Fourth Proportional to 160,819.42, 221,785.58 and 100,395.67

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Solution

The fourth proportional to 160,819.42, 221,785.58 and 100,395.67 is: 138,455.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,819.42 : 221,785.58 = 100,395.67 : x
  2. Step 2: Convert to fraction form
    160,819.42/221,785.58 = 100,395.67/x
  3. Step 3: Cross multiply
    160,819.42x = 221,785.58 × 100,395.67
  4. Step 4: Simplify right side
    160,819.42x = 22,266,310,289.53
  5. Step 5: Solve for x
    x = 22,266,310,289.53/160,819.42
  6. Step 6: Final answer
    x = 138,455.36

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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.