Home / 132,858.33-183,340.20-72,428.01

Finding the Fourth Proportional to 132,858.33, 183,340.20 and 72,428.01

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Solution

The fourth proportional to 132,858.33, 183,340.20 and 72,428.01 is: 99,948.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,858.33 : 183,340.20 = 72,428.01 : x
  2. Step 2: Convert to fraction form
    132,858.33/183,340.20 = 72,428.01/x
  3. Step 3: Cross multiply
    132,858.33x = 183,340.20 × 72,428.01
  4. Step 4: Simplify right side
    132,858.33x = 13,278,965,839.00
  5. Step 5: Solve for x
    x = 13,278,965,839.00/132,858.33
  6. Step 6: Final answer
    x = 99,948.31

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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.