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Finding the Fourth Proportional to 130,291.64, 179,800.74 and 73,703

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Solution

The fourth proportional to 130,291.64, 179,800.74 and 73,703 is: 101,709.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,291.64 : 179,800.74 = 73,703 : x
  2. Step 2: Convert to fraction form
    130,291.64/179,800.74 = 73,703/x
  3. Step 3: Cross multiply
    130,291.64x = 179,800.74 × 73,703
  4. Step 4: Simplify right side
    130,291.64x = 13,251,853,940.22
  5. Step 5: Solve for x
    x = 13,251,853,940.22/130,291.64
  6. Step 6: Final answer
    x = 101,709.17

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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.