Home / 140,289.50-193,599.32-76,627.28

Finding the Fourth Proportional to 140,289.50, 193,599.32 and 76,627.28

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Solution

The fourth proportional to 140,289.50, 193,599.32 and 76,627.28 is: 105,745.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,289.50 : 193,599.32 = 76,627.28 : x
  2. Step 2: Convert to fraction form
    140,289.50/193,599.32 = 76,627.28/x
  3. Step 3: Cross multiply
    140,289.50x = 193,599.32 × 76,627.28
  4. Step 4: Simplify right side
    140,289.50x = 14,834,987,950.32
  5. Step 5: Solve for x
    x = 14,834,987,950.32/140,289.50
  6. Step 6: Final answer
    x = 105,745.54

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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.