Home / 186,521.76-279,678.96-75,584.16

Finding the Fourth Proportional to 186,521.76, 279,678.96 and 75,584.16

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Solution

The fourth proportional to 186,521.76, 279,678.96 and 75,584.16 is: 113,334.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,521.76 : 279,678.96 = 75,584.16 : x
  2. Step 2: Convert to fraction form
    186,521.76/279,678.96 = 75,584.16/x
  3. Step 3: Cross multiply
    186,521.76x = 279,678.96 × 75,584.16
  4. Step 4: Simplify right side
    186,521.76x = 21,139,299,261.27
  5. Step 5: Solve for x
    x = 21,139,299,261.27/186,521.76
  6. Step 6: Final answer
    x = 113,334.23

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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.