Home / 218,054.19-300,938.78-124,928.79

Finding the Fourth Proportional to 218,054.19, 300,938.78 and 124,928.79

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Solution

The fourth proportional to 218,054.19, 300,938.78 and 124,928.79 is: 172,415.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,054.19 : 300,938.78 = 124,928.79 : x
  2. Step 2: Convert to fraction form
    218,054.19/300,938.78 = 124,928.79/x
  3. Step 3: Cross multiply
    218,054.19x = 300,938.78 × 124,928.79
  4. Step 4: Simplify right side
    218,054.19x = 37,595,917,024.83
  5. Step 5: Solve for x
    x = 37,595,917,024.83/218,054.19
  6. Step 6: Final answer
    x = 172,415.48

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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.