Home / 127,979.40-191,969.10-122,795.40

Finding the Fourth Proportional to 127,979.40, 191,969.10 and 122,795.40

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Solution

The fourth proportional to 127,979.40, 191,969.10 and 122,795.40 is: 184,193.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,979.40 : 191,969.10 = 122,795.40 : x
  2. Step 2: Convert to fraction form
    127,979.40/191,969.10 = 122,795.40/x
  3. Step 3: Cross multiply
    127,979.40x = 191,969.10 × 122,795.40
  4. Step 4: Simplify right side
    127,979.40x = 23,572,922,422.14
  5. Step 5: Solve for x
    x = 23,572,922,422.14/127,979.40
  6. Step 6: Final answer
    x = 184,193.10

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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.