Home / 151,938.20-228,053.10-77,142.80

Finding the Fourth Proportional to 151,938.20, 228,053.10 and 77,142.80

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Solution

The fourth proportional to 151,938.20, 228,053.10 and 77,142.80 is: 115,788.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,938.20 : 228,053.10 = 77,142.80 : x
  2. Step 2: Convert to fraction form
    151,938.20/228,053.10 = 77,142.80/x
  3. Step 3: Cross multiply
    151,938.20x = 228,053.10 × 77,142.80
  4. Step 4: Simplify right side
    151,938.20x = 17,592,654,682.68
  5. Step 5: Solve for x
    x = 17,592,654,682.68/151,938.20
  6. Step 6: Final answer
    x = 115,788.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.