Home / 118,228.20-163,157.26-64,514.68

Finding the Fourth Proportional to 118,228.20, 163,157.26 and 64,514.68

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Solution

The fourth proportional to 118,228.20, 163,157.26 and 64,514.68 is: 89,031.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,228.20 : 163,157.26 = 64,514.68 : x
  2. Step 2: Convert to fraction form
    118,228.20/163,157.26 = 64,514.68/x
  3. Step 3: Cross multiply
    118,228.20x = 163,157.26 × 64,514.68
  4. Step 4: Simplify right side
    118,228.20x = 10,526,038,418.58
  5. Step 5: Solve for x
    x = 10,526,038,418.58/118,228.20
  6. Step 6: Final answer
    x = 89,031.54

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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.