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Finding the Fourth Proportional to 148,802.63, 205,350.07 and 80,819.67

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Solution

The fourth proportional to 148,802.63, 205,350.07 and 80,819.67 is: 111,532.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,802.63 : 205,350.07 = 80,819.67 : x
  2. Step 2: Convert to fraction form
    148,802.63/205,350.07 = 80,819.67/x
  3. Step 3: Cross multiply
    148,802.63x = 205,350.07 × 80,819.67
  4. Step 4: Simplify right side
    148,802.63x = 16,596,325,952.39
  5. Step 5: Solve for x
    x = 16,596,325,952.39/148,802.63
  6. Step 6: Final answer
    x = 111,532.48

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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.