Home / 186,113.25-278,947.53-67,720.14

Finding the Fourth Proportional to 186,113.25, 278,947.53 and 67,720.14

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Solution

The fourth proportional to 186,113.25, 278,947.53 and 67,720.14 is: 101,499.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,113.25 : 278,947.53 = 67,720.14 : x
  2. Step 2: Convert to fraction form
    186,113.25/278,947.53 = 67,720.14/x
  3. Step 3: Cross multiply
    186,113.25x = 278,947.53 × 67,720.14
  4. Step 4: Simplify right side
    186,113.25x = 18,890,365,784.25
  5. Step 5: Solve for x
    x = 18,890,365,784.25/186,113.25
  6. Step 6: Final answer
    x = 101,499.31

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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.