Home / 127,971.06-191,956.59-65,601.78

Finding the Fourth Proportional to 127,971.06, 191,956.59 and 65,601.78

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Solution

The fourth proportional to 127,971.06, 191,956.59 and 65,601.78 is: 98,402.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,971.06 : 191,956.59 = 65,601.78 : x
  2. Step 2: Convert to fraction form
    127,971.06/191,956.59 = 65,601.78/x
  3. Step 3: Cross multiply
    127,971.06x = 191,956.59 × 65,601.78
  4. Step 4: Simplify right side
    127,971.06x = 12,592,693,986.73
  5. Step 5: Solve for x
    x = 12,592,693,986.73/127,971.06
  6. Step 6: Final answer
    x = 98,402.67

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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.