Home / 132,043.79-182,008.21-103,313.90

Finding the Fourth Proportional to 132,043.79, 182,008.21 and 103,313.90

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Solution

The fourth proportional to 132,043.79, 182,008.21 and 103,313.90 is: 142,407.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,043.79 : 182,008.21 = 103,313.90 : x
  2. Step 2: Convert to fraction form
    132,043.79/182,008.21 = 103,313.90/x
  3. Step 3: Cross multiply
    132,043.79x = 182,008.21 × 103,313.90
  4. Step 4: Simplify right side
    132,043.79x = 18,803,978,007.12
  5. Step 5: Solve for x
    x = 18,803,978,007.12/132,043.79
  6. Step 6: Final answer
    x = 142,407.14

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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.