Home / 186,639.06-279,792.81-72,760.62

Finding the Fourth Proportional to 186,639.06, 279,792.81 and 72,760.62

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Solution

The fourth proportional to 186,639.06, 279,792.81 and 72,760.62 is: 109,076.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,639.06 : 279,792.81 = 72,760.62 : x
  2. Step 2: Convert to fraction form
    186,639.06/279,792.81 = 72,760.62/x
  3. Step 3: Cross multiply
    186,639.06x = 279,792.81 × 72,760.62
  4. Step 4: Simplify right side
    186,639.06x = 20,357,898,327.14
  5. Step 5: Solve for x
    x = 20,357,898,327.14/186,639.06
  6. Step 6: Final answer
    x = 109,076.30

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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.