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Finding the Fourth Proportional to 146,121.60, 218,721.60 and 141,513.60

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Solution

The fourth proportional to 146,121.60, 218,721.60 and 141,513.60 is: 211,824.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,121.60 : 218,721.60 = 141,513.60 : x
  2. Step 2: Convert to fraction form
    146,121.60/218,721.60 = 141,513.60/x
  3. Step 3: Cross multiply
    146,121.60x = 218,721.60 × 141,513.60
  4. Step 4: Simplify right side
    146,121.60x = 30,952,081,013.76
  5. Step 5: Solve for x
    x = 30,952,081,013.76/146,121.60
  6. Step 6: Final answer
    x = 211,824.13

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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.