Home / 129,827.60-194,741.40-85,504.40

Finding the Fourth Proportional to 129,827.60, 194,741.40 and 85,504.40

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Solution

The fourth proportional to 129,827.60, 194,741.40 and 85,504.40 is: 128,256.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,827.60 : 194,741.40 = 85,504.40 : x
  2. Step 2: Convert to fraction form
    129,827.60/194,741.40 = 85,504.40/x
  3. Step 3: Cross multiply
    129,827.60x = 194,741.40 × 85,504.40
  4. Step 4: Simplify right side
    129,827.60x = 16,651,246,562.16
  5. Step 5: Solve for x
    x = 16,651,246,562.16/129,827.60
  6. Step 6: Final answer
    x = 128,256.60

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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.