Home / 186,439.10-279,695.10-74,100.20

Finding the Fourth Proportional to 186,439.10, 279,695.10 and 74,100.20

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Solution

The fourth proportional to 186,439.10, 279,695.10 and 74,100.20 is: 111,164.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,439.10 : 279,695.10 = 74,100.20 : x
  2. Step 2: Convert to fraction form
    186,439.10/279,695.10 = 74,100.20/x
  3. Step 3: Cross multiply
    186,439.10x = 279,695.10 × 74,100.20
  4. Step 4: Simplify right side
    186,439.10x = 20,725,462,849.02
  5. Step 5: Solve for x
    x = 20,725,462,849.02/186,439.10
  6. Step 6: Final answer
    x = 111,164.79

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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.