Home / 145,007.20-218,029.20-122,197.60

Finding the Fourth Proportional to 145,007.20, 218,029.20 and 122,197.60

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Solution

The fourth proportional to 145,007.20, 218,029.20 and 122,197.60 is: 183,733.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,007.20 : 218,029.20 = 122,197.60 : x
  2. Step 2: Convert to fraction form
    145,007.20/218,029.20 = 122,197.60/x
  3. Step 3: Cross multiply
    145,007.20x = 218,029.20 × 122,197.60
  4. Step 4: Simplify right side
    145,007.20x = 26,642,644,969.92
  5. Step 5: Solve for x
    x = 26,642,644,969.92/145,007.20
  6. Step 6: Final answer
    x = 183,733.26

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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.