Home / 127,305.14-190,956.49-77,399.01

Finding the Fourth Proportional to 127,305.14, 190,956.49 and 77,399.01

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Solution

The fourth proportional to 127,305.14, 190,956.49 and 77,399.01 is: 116,097.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,305.14 : 190,956.49 = 77,399.01 : x
  2. Step 2: Convert to fraction form
    127,305.14/190,956.49 = 77,399.01/x
  3. Step 3: Cross multiply
    127,305.14x = 190,956.49 × 77,399.01
  4. Step 4: Simplify right side
    127,305.14x = 14,779,843,085.58
  5. Step 5: Solve for x
    x = 14,779,843,085.58/127,305.14
  6. Step 6: Final answer
    x = 116,097.78

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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.