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Finding the Fourth Proportional to 148,008.70, 221,830.80 and 100,623.70

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Solution

The fourth proportional to 148,008.70, 221,830.80 and 100,623.70 is: 150,811.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,008.70 : 221,830.80 = 100,623.70 : x
  2. Step 2: Convert to fraction form
    148,008.70/221,830.80 = 100,623.70/x
  3. Step 3: Cross multiply
    148,008.70x = 221,830.80 × 100,623.70
  4. Step 4: Simplify right side
    148,008.70x = 22,321,435,869.96
  5. Step 5: Solve for x
    x = 22,321,435,869.96/148,008.70
  6. Step 6: Final answer
    x = 150,811.65

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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.