Home / 132,917.34-183,429.40-72,490.54

Finding the Fourth Proportional to 132,917.34, 183,429.40 and 72,490.54

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Solution

The fourth proportional to 132,917.34, 183,429.40 and 72,490.54 is: 100,038.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,917.34 : 183,429.40 = 72,490.54 : x
  2. Step 2: Convert to fraction form
    132,917.34/183,429.40 = 72,490.54/x
  3. Step 3: Cross multiply
    132,917.34x = 183,429.40 × 72,490.54
  4. Step 4: Simplify right side
    132,917.34x = 13,296,896,257.88
  5. Step 5: Solve for x
    x = 13,296,896,257.88/132,917.34
  6. Step 6: Final answer
    x = 100,038.84

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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.