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Finding the Fourth Proportional to 160,818.44, 221,784.15 and 100,394.67

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Solution

The fourth proportional to 160,818.44, 221,784.15 and 100,394.67 is: 138,453.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,818.44 : 221,784.15 = 100,394.67 : x
  2. Step 2: Convert to fraction form
    160,818.44/221,784.15 = 100,394.67/x
  3. Step 3: Cross multiply
    160,818.44x = 221,784.15 × 100,394.67
  4. Step 4: Simplify right side
    160,818.44x = 22,265,946,550.48
  5. Step 5: Solve for x
    x = 22,265,946,550.48/160,818.44
  6. Step 6: Final answer
    x = 138,453.94

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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.