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Finding the Fourth Proportional to 148,099.86, 221,944.86 and 128,329.38

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Solution

The fourth proportional to 148,099.86, 221,944.86 and 128,329.38 is: 192,316.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,099.86 : 221,944.86 = 128,329.38 : x
  2. Step 2: Convert to fraction form
    148,099.86/221,944.86 = 128,329.38/x
  3. Step 3: Cross multiply
    148,099.86x = 221,944.86 × 128,329.38
  4. Step 4: Simplify right side
    148,099.86x = 28,482,046,277.99
  5. Step 5: Solve for x
    x = 28,482,046,277.99/148,099.86
  6. Step 6: Final answer
    x = 192,316.50

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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.