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Finding the Fourth Proportional to 147,351.81, 203,256.87 and 89,964.93

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Solution

The fourth proportional to 147,351.81, 203,256.87 and 89,964.93 is: 124,097.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,351.81 : 203,256.87 = 89,964.93 : x
  2. Step 2: Convert to fraction form
    147,351.81/203,256.87 = 89,964.93/x
  3. Step 3: Cross multiply
    147,351.81x = 203,256.87 × 89,964.93
  4. Step 4: Simplify right side
    147,351.81x = 18,285,990,081.57
  5. Step 5: Solve for x
    x = 18,285,990,081.57/147,351.81
  6. Step 6: Final answer
    x = 124,097.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.