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Finding the Fourth Proportional to 100,248.45, 150,214.47 and 36,981.51

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Solution

The fourth proportional to 100,248.45, 150,214.47 and 36,981.51 is: 55,413.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,248.45 : 150,214.47 = 36,981.51 : x
  2. Step 2: Convert to fraction form
    100,248.45/150,214.47 = 36,981.51/x
  3. Step 3: Cross multiply
    100,248.45x = 150,214.47 × 36,981.51
  4. Step 4: Simplify right side
    100,248.45x = 5,555,157,924.45
  5. Step 5: Solve for x
    x = 5,555,157,924.45/100,248.45
  6. Step 6: Final answer
    x = 55,413.90

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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.