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Finding the Fourth Proportional to 130,336.63, 179,867.28 and 73,748

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Solution

The fourth proportional to 130,336.63, 179,867.28 and 73,748 is: 101,773.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,336.63 : 179,867.28 = 73,748 : x
  2. Step 2: Convert to fraction form
    130,336.63/179,867.28 = 73,748/x
  3. Step 3: Cross multiply
    130,336.63x = 179,867.28 × 73,748
  4. Step 4: Simplify right side
    130,336.63x = 13,264,852,165.44
  5. Step 5: Solve for x
    x = 13,264,852,165.44/130,336.63
  6. Step 6: Final answer
    x = 101,773.79

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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.