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Finding the Fourth Proportional to 143,693.76, 214,274.76 and 133,721.04

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Solution

The fourth proportional to 143,693.76, 214,274.76 and 133,721.04 is: 199,403.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,693.76 : 214,274.76 = 133,721.04 : x
  2. Step 2: Convert to fraction form
    143,693.76/214,274.76 = 133,721.04/x
  3. Step 3: Cross multiply
    143,693.76x = 214,274.76 × 133,721.04
  4. Step 4: Simplify right side
    143,693.76x = 28,653,043,752.95
  5. Step 5: Solve for x
    x = 28,653,043,752.95/143,693.76
  6. Step 6: Final answer
    x = 199,403.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.