Home / 118,221.44-163,145.52-75,779.94

Finding the Fourth Proportional to 118,221.44, 163,145.52 and 75,779.94

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Solution

The fourth proportional to 118,221.44, 163,145.52 and 75,779.94 is: 104,576.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,221.44 : 163,145.52 = 75,779.94 : x
  2. Step 2: Convert to fraction form
    118,221.44/163,145.52 = 75,779.94/x
  3. Step 3: Cross multiply
    118,221.44x = 163,145.52 × 75,779.94
  4. Step 4: Simplify right side
    118,221.44x = 12,363,157,716.87
  5. Step 5: Solve for x
    x = 12,363,157,716.87/118,221.44
  6. Step 6: Final answer
    x = 104,576.27

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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.