Home / 130,039.20-195,058.80-100,514.70

Finding the Fourth Proportional to 130,039.20, 195,058.80 and 100,514.70

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Solution

The fourth proportional to 130,039.20, 195,058.80 and 100,514.70 is: 150,772.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,039.20 : 195,058.80 = 100,514.70 : x
  2. Step 2: Convert to fraction form
    130,039.20/195,058.80 = 100,514.70/x
  3. Step 3: Cross multiply
    130,039.20x = 195,058.80 × 100,514.70
  4. Step 4: Simplify right side
    130,039.20x = 19,606,276,764.36
  5. Step 5: Solve for x
    x = 19,606,276,764.36/130,039.20
  6. Step 6: Final answer
    x = 150,772.05

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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.