Home / 122,434.40-183,651.60-82,776.80

Finding the Fourth Proportional to 122,434.40, 183,651.60 and 82,776.80

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Solution

The fourth proportional to 122,434.40, 183,651.60 and 82,776.80 is: 124,165.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,434.40 : 183,651.60 = 82,776.80 : x
  2. Step 2: Convert to fraction form
    122,434.40/183,651.60 = 82,776.80/x
  3. Step 3: Cross multiply
    122,434.40x = 183,651.60 × 82,776.80
  4. Step 4: Simplify right side
    122,434.40x = 15,202,091,762.88
  5. Step 5: Solve for x
    x = 15,202,091,762.88/122,434.40
  6. Step 6: Final answer
    x = 124,165.20

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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.