Home / 189,921.57-262,172.46-118,336.95

Finding the Fourth Proportional to 189,921.57, 262,172.46 and 118,336.95

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Solution

The fourth proportional to 189,921.57, 262,172.46 and 118,336.95 is: 163,355.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,921.57 : 262,172.46 = 118,336.95 : x
  2. Step 2: Convert to fraction form
    189,921.57/262,172.46 = 118,336.95/x
  3. Step 3: Cross multiply
    189,921.57x = 262,172.46 × 118,336.95
  4. Step 4: Simplify right side
    189,921.57x = 31,024,689,290.40
  5. Step 5: Solve for x
    x = 31,024,689,290.40/189,921.57
  6. Step 6: Final answer
    x = 163,355.27

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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.