Home / 170,040.40-255,070.20-51,715.60

Finding the Fourth Proportional to 170,040.40, 255,070.20 and 51,715.60

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Solution

The fourth proportional to 170,040.40, 255,070.20 and 51,715.60 is: 77,576.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,040.40 : 255,070.20 = 51,715.60 : x
  2. Step 2: Convert to fraction form
    170,040.40/255,070.20 = 51,715.60/x
  3. Step 3: Cross multiply
    170,040.40x = 255,070.20 × 51,715.60
  4. Step 4: Simplify right side
    170,040.40x = 13,191,108,435.12
  5. Step 5: Solve for x
    x = 13,191,108,435.12/170,040.40
  6. Step 6: Final answer
    x = 77,576.32

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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.