Home / 127,514.70-191,272.05-76,776.30

Finding the Fourth Proportional to 127,514.70, 191,272.05 and 76,776.30

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Solution

The fourth proportional to 127,514.70, 191,272.05 and 76,776.30 is: 115,164.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,514.70 : 191,272.05 = 76,776.30 : x
  2. Step 2: Convert to fraction form
    127,514.70/191,272.05 = 76,776.30/x
  3. Step 3: Cross multiply
    127,514.70x = 191,272.05 × 76,776.30
  4. Step 4: Simplify right side
    127,514.70x = 14,685,160,292.42
  5. Step 5: Solve for x
    x = 14,685,160,292.42/127,514.70
  6. Step 6: Final answer
    x = 115,164.45

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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.