Home / 115,890.20-173,633.70-53,432.60

Finding the Fourth Proportional to 115,890.20, 173,633.70 and 53,432.60

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Solution

The fourth proportional to 115,890.20, 173,633.70 and 53,432.60 is: 80,055.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,890.20 : 173,633.70 = 53,432.60 : x
  2. Step 2: Convert to fraction form
    115,890.20/173,633.70 = 53,432.60/x
  3. Step 3: Cross multiply
    115,890.20x = 173,633.70 × 53,432.60
  4. Step 4: Simplify right side
    115,890.20x = 9,277,700,038.62
  5. Step 5: Solve for x
    x = 9,277,700,038.62/115,890.20
  6. Step 6: Final answer
    x = 80,055.95

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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.