Home / 118,733.10-163,870.20-67,745.76

Finding the Fourth Proportional to 118,733.10, 163,870.20 and 67,745.76

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Solution

The fourth proportional to 118,733.10, 163,870.20 and 67,745.76 is: 93,499.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,733.10 : 163,870.20 = 67,745.76 : x
  2. Step 2: Convert to fraction form
    118,733.10/163,870.20 = 67,745.76/x
  3. Step 3: Cross multiply
    118,733.10x = 163,870.20 × 67,745.76
  4. Step 4: Simplify right side
    118,733.10x = 11,101,511,240.35
  5. Step 5: Solve for x
    x = 11,101,511,240.35/118,733.10
  6. Step 6: Final answer
    x = 93,499.72

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1.5x scale

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.