Home / 118,140.45-163,037.88-67,155.32

Finding the Fourth Proportional to 118,140.45, 163,037.88 and 67,155.32

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Solution

The fourth proportional to 118,140.45, 163,037.88 and 67,155.32 is: 92,676.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,140.45 : 163,037.88 = 67,155.32 : x
  2. Step 2: Convert to fraction form
    118,140.45/163,037.88 = 67,155.32/x
  3. Step 3: Cross multiply
    118,140.45x = 163,037.88 × 67,155.32
  4. Step 4: Simplify right side
    118,140.45x = 10,948,860,188.33
  5. Step 5: Solve for x
    x = 10,948,860,188.33/118,140.45
  6. Step 6: Final answer
    x = 92,676.64

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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.