Home / 97,927.46-135,181.24-66,139.40

Finding the Fourth Proportional to 97,927.46, 135,181.24 and 66,139.40

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Solution

The fourth proportional to 97,927.46, 135,181.24 and 66,139.40 is: 91,300.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,927.46 : 135,181.24 = 66,139.40 : x
  2. Step 2: Convert to fraction form
    97,927.46/135,181.24 = 66,139.40/x
  3. Step 3: Cross multiply
    97,927.46x = 135,181.24 × 66,139.40
  4. Step 4: Simplify right side
    97,927.46x = 8,940,806,104.86
  5. Step 5: Solve for x
    x = 8,940,806,104.86/97,927.46
  6. Step 6: Final answer
    x = 91,300.30

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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.