Home / 139,876.20-193,030.02-83,289.96

Finding the Fourth Proportional to 139,876.20, 193,030.02 and 83,289.96

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Solution

The fourth proportional to 139,876.20, 193,030.02 and 83,289.96 is: 114,940.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,876.20 : 193,030.02 = 83,289.96 : x
  2. Step 2: Convert to fraction form
    139,876.20/193,030.02 = 83,289.96/x
  3. Step 3: Cross multiply
    139,876.20x = 193,030.02 × 83,289.96
  4. Step 4: Simplify right side
    139,876.20x = 16,077,462,644.60
  5. Step 5: Solve for x
    x = 16,077,462,644.60/139,876.20
  6. Step 6: Final answer
    x = 114,940.66

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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.