Home / 140,763.52-194,253.68-77,103.60

Finding the Fourth Proportional to 140,763.52, 194,253.68 and 77,103.60

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Solution

The fourth proportional to 140,763.52, 194,253.68 and 77,103.60 is: 106,402.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,763.52 : 194,253.68 = 77,103.60 : x
  2. Step 2: Convert to fraction form
    140,763.52/194,253.68 = 77,103.60/x
  3. Step 3: Cross multiply
    140,763.52x = 194,253.68 × 77,103.60
  4. Step 4: Simplify right side
    140,763.52x = 14,977,658,041.25
  5. Step 5: Solve for x
    x = 14,977,658,041.25/140,763.52
  6. Step 6: Final answer
    x = 106,402.98

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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.