Home / 127,984.56-176,622.54-71,394.72

Finding the Fourth Proportional to 127,984.56, 176,622.54 and 71,394.72

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Solution

The fourth proportional to 127,984.56, 176,622.54 and 71,394.72 is: 98,526.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,984.56 : 176,622.54 = 71,394.72 : x
  2. Step 2: Convert to fraction form
    127,984.56/176,622.54 = 71,394.72/x
  3. Step 3: Cross multiply
    127,984.56x = 176,622.54 × 71,394.72
  4. Step 4: Simplify right side
    127,984.56x = 12,609,916,788.99
  5. Step 5: Solve for x
    x = 12,609,916,788.99/127,984.56
  6. Step 6: Final answer
    x = 98,526.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.