Home / 186,288.12-279,275.43-81,027.81

Finding the Fourth Proportional to 186,288.12, 279,275.43 and 81,027.81

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Solution

The fourth proportional to 186,288.12, 279,275.43 and 81,027.81 is: 121,473.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,288.12 : 279,275.43 = 81,027.81 : x
  2. Step 2: Convert to fraction form
    186,288.12/279,275.43 = 81,027.81/x
  3. Step 3: Cross multiply
    186,288.12x = 279,275.43 × 81,027.81
  4. Step 4: Simplify right side
    186,288.12x = 22,629,075,083.33
  5. Step 5: Solve for x
    x = 22,629,075,083.33/186,288.12
  6. Step 6: Final answer
    x = 121,473.53

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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.