Home / 116,078.13-174,139.05-82,715.43

Finding the Fourth Proportional to 116,078.13, 174,139.05 and 82,715.43

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Solution

The fourth proportional to 116,078.13, 174,139.05 and 82,715.43 is: 124,088.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,078.13 : 174,139.05 = 82,715.43 : x
  2. Step 2: Convert to fraction form
    116,078.13/174,139.05 = 82,715.43/x
  3. Step 3: Cross multiply
    116,078.13x = 174,139.05 × 82,715.43
  4. Step 4: Simplify right side
    116,078.13x = 14,403,986,400.54
  5. Step 5: Solve for x
    x = 14,403,986,400.54/116,078.13
  6. Step 6: Final answer
    x = 124,088.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.