Home / 160,678.47-221,806.93-112,469.73

Finding the Fourth Proportional to 160,678.47, 221,806.93 and 112,469.73

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Solution

The fourth proportional to 160,678.47, 221,806.93 and 112,469.73 is: 155,257.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,678.47 : 221,806.93 = 112,469.73 : x
  2. Step 2: Convert to fraction form
    160,678.47/221,806.93 = 112,469.73/x
  3. Step 3: Cross multiply
    160,678.47x = 221,806.93 × 112,469.73
  4. Step 4: Simplify right side
    160,678.47x = 24,946,565,529.23
  5. Step 5: Solve for x
    x = 24,946,565,529.23/160,678.47
  6. Step 6: Final answer
    x = 155,257.67

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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.