Home / 133,455.18-199,975.41-84,103.50

Finding the Fourth Proportional to 133,455.18, 199,975.41 and 84,103.50

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Solution

The fourth proportional to 133,455.18, 199,975.41 and 84,103.50 is: 126,024.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,455.18 : 199,975.41 = 84,103.50 : x
  2. Step 2: Convert to fraction form
    133,455.18/199,975.41 = 84,103.50/x
  3. Step 3: Cross multiply
    133,455.18x = 199,975.41 × 84,103.50
  4. Step 4: Simplify right side
    133,455.18x = 16,818,631,894.94
  5. Step 5: Solve for x
    x = 16,818,631,894.94/133,455.18
  6. Step 6: Final answer
    x = 126,024.57

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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.