Home / 122,032.20-183,048.30-77,854.80

Finding the Fourth Proportional to 122,032.20, 183,048.30 and 77,854.80

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Solution

The fourth proportional to 122,032.20, 183,048.30 and 77,854.80 is: 116,782.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,032.20 : 183,048.30 = 77,854.80 : x
  2. Step 2: Convert to fraction form
    122,032.20/183,048.30 = 77,854.80/x
  3. Step 3: Cross multiply
    122,032.20x = 183,048.30 × 77,854.80
  4. Step 4: Simplify right side
    122,032.20x = 14,251,188,786.84
  5. Step 5: Solve for x
    x = 14,251,188,786.84/122,032.20
  6. Step 6: Final answer
    x = 116,782.20

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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.