Home / 127,626.22-191,428.39-77,693.37

Finding the Fourth Proportional to 127,626.22, 191,428.39 and 77,693.37

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Solution

The fourth proportional to 127,626.22, 191,428.39 and 77,693.37 is: 116,533.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,626.22 : 191,428.39 = 77,693.37 : x
  2. Step 2: Convert to fraction form
    127,626.22/191,428.39 = 77,693.37/x
  3. Step 3: Cross multiply
    127,626.22x = 191,428.39 × 77,693.37
  4. Step 4: Simplify right side
    127,626.22x = 14,872,716,732.77
  5. Step 5: Solve for x
    x = 14,872,716,732.77/127,626.22
  6. Step 6: Final answer
    x = 116,533.40

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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.