Home / 127,618.23-191,454.70-38,878.89

Finding the Fourth Proportional to 127,618.23, 191,454.70 and 38,878.89

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Solution

The fourth proportional to 127,618.23, 191,454.70 and 38,878.89 is: 58,326.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,618.23 : 191,454.70 = 38,878.89 : x
  2. Step 2: Convert to fraction form
    127,618.23/191,454.70 = 38,878.89/x
  3. Step 3: Cross multiply
    127,618.23x = 191,454.70 × 38,878.89
  4. Step 4: Simplify right side
    127,618.23x = 7,443,546,221.28
  5. Step 5: Solve for x
    x = 7,443,546,221.28/127,618.23
  6. Step 6: Final answer
    x = 58,326.67

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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.