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Finding the Fourth Proportional to 103,102.47, 154,555.29 and 43,856.64

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Solution

The fourth proportional to 103,102.47, 154,555.29 and 43,856.64 is: 65,743.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,102.47 : 154,555.29 = 43,856.64 : x
  2. Step 2: Convert to fraction form
    103,102.47/154,555.29 = 43,856.64/x
  3. Step 3: Cross multiply
    103,102.47x = 154,555.29 × 43,856.64
  4. Step 4: Simplify right side
    103,102.47x = 6,778,275,713.63
  5. Step 5: Solve for x
    x = 6,778,275,713.63/103,102.47
  6. Step 6: Final answer
    x = 65,743.10

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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.