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Finding the Fourth Proportional to 186,154.54, 279,248.43 and 72,299.63

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Solution

The fourth proportional to 186,154.54, 279,248.43 and 72,299.63 is: 108,455.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,154.54 : 279,248.43 = 72,299.63 : x
  2. Step 2: Convert to fraction form
    186,154.54/279,248.43 = 72,299.63/x
  3. Step 3: Cross multiply
    186,154.54x = 279,248.43 × 72,299.63
  4. Step 4: Simplify right side
    186,154.54x = 20,189,559,136.33
  5. Step 5: Solve for x
    x = 20,189,559,136.33/186,154.54
  6. Step 6: Final answer
    x = 108,455.91

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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.