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Finding the Fourth Proportional to 97,165, 134,146.02 and 63,689.32

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Solution

The fourth proportional to 97,165, 134,146.02 and 63,689.32 is: 87,929.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,165 : 134,146.02 = 63,689.32 : x
  2. Step 2: Convert to fraction form
    97,165/134,146.02 = 63,689.32/x
  3. Step 3: Cross multiply
    97,165x = 134,146.02 × 63,689.32
  4. Step 4: Simplify right side
    97,165x = 8,543,668,794.51
  5. Step 5: Solve for x
    x = 8,543,668,794.51/97,165
  6. Step 6: Final answer
    x = 87,929.49

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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.