Home / 132,821.17-183,287.82-72,390.58

Finding the Fourth Proportional to 132,821.17, 183,287.82 and 72,390.58

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Solution

The fourth proportional to 132,821.17, 183,287.82 and 72,390.58 is: 99,896.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,821.17 : 183,287.82 = 72,390.58 : x
  2. Step 2: Convert to fraction form
    132,821.17/183,287.82 = 72,390.58/x
  3. Step 3: Cross multiply
    132,821.17x = 183,287.82 × 72,390.58
  4. Step 4: Simplify right side
    132,821.17x = 13,268,311,596.74
  5. Step 5: Solve for x
    x = 13,268,311,596.74/132,821.17
  6. Step 6: Final answer
    x = 99,896.06

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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.