Home / 97,927.47-135,181.25-66,139.43

Finding the Fourth Proportional to 97,927.47, 135,181.25 and 66,139.43

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Solution

The fourth proportional to 97,927.47, 135,181.25 and 66,139.43 is: 91,300.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,927.47 : 135,181.25 = 66,139.43 : x
  2. Step 2: Convert to fraction form
    97,927.47/135,181.25 = 66,139.43/x
  3. Step 3: Cross multiply
    97,927.47x = 135,181.25 × 66,139.43
  4. Step 4: Simplify right side
    97,927.47x = 8,940,809,815.08
  5. Step 5: Solve for x
    x = 8,940,809,815.08/97,927.47
  6. Step 6: Final answer
    x = 91,300.32

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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.