Home / 132,821.02-183,287.64-72,390.37

Finding the Fourth Proportional to 132,821.02, 183,287.64 and 72,390.37

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Solution

The fourth proportional to 132,821.02, 183,287.64 and 72,390.37 is: 99,895.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,821.02 : 183,287.64 = 72,390.37 : x
  2. Step 2: Convert to fraction form
    132,821.02/183,287.64 = 72,390.37/x
  3. Step 3: Cross multiply
    132,821.02x = 183,287.64 × 72,390.37
  4. Step 4: Simplify right side
    132,821.02x = 13,268,260,076.03
  5. Step 5: Solve for x
    x = 13,268,260,076.03/132,821.02
  6. Step 6: Final answer
    x = 99,895.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.