Home / 186,688.20-279,855.24-74,437.38

Finding the Fourth Proportional to 186,688.20, 279,855.24 and 74,437.38

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Solution

The fourth proportional to 186,688.20, 279,855.24 and 74,437.38 is: 111,585.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,688.20 : 279,855.24 = 74,437.38 : x
  2. Step 2: Convert to fraction form
    186,688.20/279,855.24 = 74,437.38/x
  3. Step 3: Cross multiply
    186,688.20x = 279,855.24 × 74,437.38
  4. Step 4: Simplify right side
    186,688.20x = 20,831,690,844.87
  5. Step 5: Solve for x
    x = 20,831,690,844.87/186,688.20
  6. Step 6: Final answer
    x = 111,585.47

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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.