Home / 214,720.88-296,342.15-129,838.55

Finding the Fourth Proportional to 214,720.88, 296,342.15 and 129,838.55

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Solution

The fourth proportional to 214,720.88, 296,342.15 and 129,838.55 is: 179,193.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,720.88 : 296,342.15 = 129,838.55 : x
  2. Step 2: Convert to fraction form
    214,720.88/296,342.15 = 129,838.55/x
  3. Step 3: Cross multiply
    214,720.88x = 296,342.15 × 129,838.55
  4. Step 4: Simplify right side
    214,720.88x = 38,476,632,928.98
  5. Step 5: Solve for x
    x = 38,476,632,928.98/214,720.88
  6. Step 6: Final answer
    x = 179,193.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.