Home / 210,121.32-289,915.74-134,771.88

Finding the Fourth Proportional to 210,121.32, 289,915.74 and 134,771.88

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Solution

The fourth proportional to 210,121.32, 289,915.74 and 134,771.88 is: 185,952.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,121.32 : 289,915.74 = 134,771.88 : x
  2. Step 2: Convert to fraction form
    210,121.32/289,915.74 = 134,771.88/x
  3. Step 3: Cross multiply
    210,121.32x = 289,915.74 × 134,771.88
  4. Step 4: Simplify right side
    210,121.32x = 39,072,489,321.39
  5. Step 5: Solve for x
    x = 39,072,489,321.39/210,121.32
  6. Step 6: Final answer
    x = 185,952.05

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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.