Home / 223,826.45-308,870.42-121,849.30

Finding the Fourth Proportional to 223,826.45, 308,870.42 and 121,849.30

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Solution

The fourth proportional to 223,826.45, 308,870.42 and 121,849.30 is: 168,146.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,826.45 : 308,870.42 = 121,849.30 : x
  2. Step 2: Convert to fraction form
    223,826.45/308,870.42 = 121,849.30/x
  3. Step 3: Cross multiply
    223,826.45x = 308,870.42 × 121,849.30
  4. Step 4: Simplify right side
    223,826.45x = 37,635,642,314.11
  5. Step 5: Solve for x
    x = 37,635,642,314.11/223,826.45
  6. Step 6: Final answer
    x = 168,146.54

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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.