Home / 127,620.13-191,439.06-43,345.93

Finding the Fourth Proportional to 127,620.13, 191,439.06 and 43,345.93

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Solution

The fourth proportional to 127,620.13, 191,439.06 and 43,345.93 is: 65,021.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,620.13 : 191,439.06 = 43,345.93 : x
  2. Step 2: Convert to fraction form
    127,620.13/191,439.06 = 43,345.93/x
  3. Step 3: Cross multiply
    127,620.13x = 191,439.06 × 43,345.93
  4. Step 4: Simplify right side
    127,620.13x = 8,298,104,094.03
  5. Step 5: Solve for x
    x = 8,298,104,094.03/127,620.13
  6. Step 6: Final answer
    x = 65,021.91

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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.