Home / 454,585.20-681,954.30-138,968.40

Finding the Fourth Proportional to 454,585.20, 681,954.30 and 138,968.40

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Solution

The fourth proportional to 454,585.20, 681,954.30 and 138,968.40 is: 208,475.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,585.20 : 681,954.30 = 138,968.40 : x
  2. Step 2: Convert to fraction form
    454,585.20/681,954.30 = 138,968.40/x
  3. Step 3: Cross multiply
    454,585.20x = 681,954.30 × 138,968.40
  4. Step 4: Simplify right side
    454,585.20x = 94,770,097,944.12
  5. Step 5: Solve for x
    x = 94,770,097,944.12/454,585.20
  6. Step 6: Final answer
    x = 208,475.99

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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.