Home / 132,820.23-183,289.62-72,391.59

Finding the Fourth Proportional to 132,820.23, 183,289.62 and 72,391.59

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Solution

The fourth proportional to 132,820.23, 183,289.62 and 72,391.59 is: 99,899.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,820.23 : 183,289.62 = 72,391.59 : x
  2. Step 2: Convert to fraction form
    132,820.23/183,289.62 = 72,391.59/x
  3. Step 3: Cross multiply
    132,820.23x = 183,289.62 × 72,391.59
  4. Step 4: Simplify right side
    132,820.23x = 13,268,627,022.30
  5. Step 5: Solve for x
    x = 13,268,627,022.30/132,820.23
  6. Step 6: Final answer
    x = 99,899.14

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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.