Home / 97,664.88-134,761.56-64,172.40

Finding the Fourth Proportional to 97,664.88, 134,761.56 and 64,172.40

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Solution

The fourth proportional to 97,664.88, 134,761.56 and 64,172.40 is: 88,547.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,664.88 : 134,761.56 = 64,172.40 : x
  2. Step 2: Convert to fraction form
    97,664.88/134,761.56 = 64,172.40/x
  3. Step 3: Cross multiply
    97,664.88x = 134,761.56 × 64,172.40
  4. Step 4: Simplify right side
    97,664.88x = 8,647,972,732.94
  5. Step 5: Solve for x
    x = 8,647,972,732.94/97,664.88
  6. Step 6: Final answer
    x = 88,547.42

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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.