Home / 93,087.40-139,631.10-82,978.60

Finding the Fourth Proportional to 93,087.40, 139,631.10 and 82,978.60

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Solution

The fourth proportional to 93,087.40, 139,631.10 and 82,978.60 is: 124,467.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,087.40 : 139,631.10 = 82,978.60 : x
  2. Step 2: Convert to fraction form
    93,087.40/139,631.10 = 82,978.60/x
  3. Step 3: Cross multiply
    93,087.40x = 139,631.10 × 82,978.60
  4. Step 4: Simplify right side
    93,087.40x = 11,586,393,194.46
  5. Step 5: Solve for x
    x = 11,586,393,194.46/93,087.40
  6. Step 6: Final answer
    x = 124,467.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.