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Finding the Fourth Proportional to 127,599.64, 176,080 and 73,880.84

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Solution

The fourth proportional to 127,599.64, 176,080 and 73,880.84 is: 101,951.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,599.64 : 176,080 = 73,880.84 : x
  2. Step 2: Convert to fraction form
    127,599.64/176,080 = 73,880.84/x
  3. Step 3: Cross multiply
    127,599.64x = 176,080 × 73,880.84
  4. Step 4: Simplify right side
    127,599.64x = 13,008,938,307.20
  5. Step 5: Solve for x
    x = 13,008,938,307.20/127,599.64
  6. Step 6: Final answer
    x = 101,951.21

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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.