Home / 140,173.20-193,443.60-76,514.40

Finding the Fourth Proportional to 140,173.20, 193,443.60 and 76,514.40

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Solution

The fourth proportional to 140,173.20, 193,443.60 and 76,514.40 is: 105,592.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,173.20 : 193,443.60 = 76,514.40 : x
  2. Step 2: Convert to fraction form
    140,173.20/193,443.60 = 76,514.40/x
  3. Step 3: Cross multiply
    140,173.20x = 193,443.60 × 76,514.40
  4. Step 4: Simplify right side
    140,173.20x = 14,801,220,987.84
  5. Step 5: Solve for x
    x = 14,801,220,987.84/140,173.20
  6. Step 6: Final answer
    x = 105,592.37

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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.