Home / 172,129.10-257,683.35-127,951.70

Finding the Fourth Proportional to 172,129.10, 257,683.35 and 127,951.70

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Solution

The fourth proportional to 172,129.10, 257,683.35 and 127,951.70 is: 191,548.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,129.10 : 257,683.35 = 127,951.70 : x
  2. Step 2: Convert to fraction form
    172,129.10/257,683.35 = 127,951.70/x
  3. Step 3: Cross multiply
    172,129.10x = 257,683.35 × 127,951.70
  4. Step 4: Simplify right side
    172,129.10x = 32,971,022,694.20
  5. Step 5: Solve for x
    x = 32,971,022,694.20/172,129.10
  6. Step 6: Final answer
    x = 191,548.22

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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.