Home / 116,621.68-160,935.96-65,634.40

Finding the Fourth Proportional to 116,621.68, 160,935.96 and 65,634.40

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Solution

The fourth proportional to 116,621.68, 160,935.96 and 65,634.40 is: 90,574.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,621.68 : 160,935.96 = 65,634.40 : x
  2. Step 2: Convert to fraction form
    116,621.68/160,935.96 = 65,634.40/x
  3. Step 3: Cross multiply
    116,621.68x = 160,935.96 × 65,634.40
  4. Step 4: Simplify right side
    116,621.68x = 10,562,935,173.02
  5. Step 5: Solve for x
    x = 10,562,935,173.02/116,621.68
  6. Step 6: Final answer
    x = 90,574.37

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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.