Home / 180,126.31-248,604.54-121,956.65

Finding the Fourth Proportional to 180,126.31, 248,604.54 and 121,956.65

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Solution

The fourth proportional to 180,126.31, 248,604.54 and 121,956.65 is: 168,320.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,126.31 : 248,604.54 = 121,956.65 : x
  2. Step 2: Convert to fraction form
    180,126.31/248,604.54 = 121,956.65/x
  3. Step 3: Cross multiply
    180,126.31x = 248,604.54 × 121,956.65
  4. Step 4: Simplify right side
    180,126.31x = 30,318,976,263.41
  5. Step 5: Solve for x
    x = 30,318,976,263.41/180,126.31
  6. Step 6: Final answer
    x = 168,320.65

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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.