Home / 132,836.90-183,309.60-72,406.28

Finding the Fourth Proportional to 132,836.90, 183,309.60 and 72,406.28

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Solution

The fourth proportional to 132,836.90, 183,309.60 and 72,406.28 is: 99,917.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,836.90 : 183,309.60 = 72,406.28 : x
  2. Step 2: Convert to fraction form
    132,836.90/183,309.60 = 72,406.28/x
  3. Step 3: Cross multiply
    132,836.90x = 183,309.60 × 72,406.28
  4. Step 4: Simplify right side
    132,836.90x = 13,272,766,224.29
  5. Step 5: Solve for x
    x = 13,272,766,224.29/132,836.90
  6. Step 6: Final answer
    x = 99,917.77

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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.