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Finding the Fourth Proportional to 164,640.08, 246,960.88 and 39,981.12

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Solution

The fourth proportional to 164,640.08, 246,960.88 and 39,981.12 is: 59,971.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,640.08 : 246,960.88 = 39,981.12 : x
  2. Step 2: Convert to fraction form
    164,640.08/246,960.88 = 39,981.12/x
  3. Step 3: Cross multiply
    164,640.08x = 246,960.88 × 39,981.12
  4. Step 4: Simplify right side
    164,640.08x = 9,873,772,578.59
  5. Step 5: Solve for x
    x = 9,873,772,578.59/164,640.08
  6. Step 6: Final answer
    x = 59,971.86

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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.