Home / 122,639.20-183,958.80-93,114.70

Finding the Fourth Proportional to 122,639.20, 183,958.80 and 93,114.70

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Solution

The fourth proportional to 122,639.20, 183,958.80 and 93,114.70 is: 139,672.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,639.20 : 183,958.80 = 93,114.70 : x
  2. Step 2: Convert to fraction form
    122,639.20/183,958.80 = 93,114.70/x
  3. Step 3: Cross multiply
    122,639.20x = 183,958.80 × 93,114.70
  4. Step 4: Simplify right side
    122,639.20x = 17,129,268,474.36
  5. Step 5: Solve for x
    x = 17,129,268,474.36/122,639.20
  6. Step 6: Final answer
    x = 139,672.05

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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.