Home / 194,342.40-291,643.20-89,107.20

Finding the Fourth Proportional to 194,342.40, 291,643.20 and 89,107.20

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Solution

The fourth proportional to 194,342.40, 291,643.20 and 89,107.20 is: 133,720.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,342.40 : 291,643.20 = 89,107.20 : x
  2. Step 2: Convert to fraction form
    194,342.40/291,643.20 = 89,107.20/x
  3. Step 3: Cross multiply
    194,342.40x = 291,643.20 × 89,107.20
  4. Step 4: Simplify right side
    194,342.40x = 25,987,508,951.04
  5. Step 5: Solve for x
    x = 25,987,508,951.04/194,342.40
  6. Step 6: Final answer
    x = 133,720.22

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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.