Home / 129,827.80-194,741.70-127,203.40

Finding the Fourth Proportional to 129,827.80, 194,741.70 and 127,203.40

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Solution

The fourth proportional to 129,827.80, 194,741.70 and 127,203.40 is: 190,805.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,827.80 : 194,741.70 = 127,203.40 : x
  2. Step 2: Convert to fraction form
    129,827.80/194,741.70 = 127,203.40/x
  3. Step 3: Cross multiply
    129,827.80x = 194,741.70 × 127,203.40
  4. Step 4: Simplify right side
    129,827.80x = 24,771,806,361.78
  5. Step 5: Solve for x
    x = 24,771,806,361.78/129,827.80
  6. Step 6: Final answer
    x = 190,805.10

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1.5x scale

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.