Home / 186,442.72-279,572.55-79,811.62

Finding the Fourth Proportional to 186,442.72, 279,572.55 and 79,811.62

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Solution

The fourth proportional to 186,442.72, 279,572.55 and 79,811.62 is: 119,678.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,442.72 : 279,572.55 = 79,811.62 : x
  2. Step 2: Convert to fraction form
    186,442.72/279,572.55 = 79,811.62/x
  3. Step 3: Cross multiply
    186,442.72x = 279,572.55 × 79,811.62
  4. Step 4: Simplify right side
    186,442.72x = 22,313,138,123.03
  5. Step 5: Solve for x
    x = 22,313,138,123.03/186,442.72
  6. Step 6: Final answer
    x = 119,678.25

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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.