Home / 170,564.40-255,846.60-81,772.20

Finding the Fourth Proportional to 170,564.40, 255,846.60 and 81,772.20

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Solution

The fourth proportional to 170,564.40, 255,846.60 and 81,772.20 is: 122,658.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,564.40 : 255,846.60 = 81,772.20 : x
  2. Step 2: Convert to fraction form
    170,564.40/255,846.60 = 81,772.20/x
  3. Step 3: Cross multiply
    170,564.40x = 255,846.60 × 81,772.20
  4. Step 4: Simplify right side
    170,564.40x = 20,921,139,344.52
  5. Step 5: Solve for x
    x = 20,921,139,344.52/170,564.40
  6. Step 6: Final answer
    x = 122,658.30

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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.