Home / 116,699.20-174,818.40-69,812.80

Finding the Fourth Proportional to 116,699.20, 174,818.40 and 69,812.80

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Solution

The fourth proportional to 116,699.20, 174,818.40 and 69,812.80 is: 104,581.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,699.20 : 174,818.40 = 69,812.80 : x
  2. Step 2: Convert to fraction form
    116,699.20/174,818.40 = 69,812.80/x
  3. Step 3: Cross multiply
    116,699.20x = 174,818.40 × 69,812.80
  4. Step 4: Simplify right side
    116,699.20x = 12,204,561,995.52
  5. Step 5: Solve for x
    x = 12,204,561,995.52/116,699.20
  6. Step 6: Final answer
    x = 104,581.37

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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.