Home / 127,861.36-191,799.72-39,115.63

Finding the Fourth Proportional to 127,861.36, 191,799.72 and 39,115.63

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Solution

The fourth proportional to 127,861.36, 191,799.72 and 39,115.63 is: 58,675.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,861.36 : 191,799.72 = 39,115.63 : x
  2. Step 2: Convert to fraction form
    127,861.36/191,799.72 = 39,115.63/x
  3. Step 3: Cross multiply
    127,861.36x = 191,799.72 × 39,115.63
  4. Step 4: Simplify right side
    127,861.36x = 7,502,367,770.82
  5. Step 5: Solve for x
    x = 7,502,367,770.82/127,861.36
  6. Step 6: Final answer
    x = 58,675.80

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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.