Home / 116,021.64-160,113.22-65,720.68

Finding the Fourth Proportional to 116,021.64, 160,113.22 and 65,720.68

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Solution

The fourth proportional to 116,021.64, 160,113.22 and 65,720.68 is: 90,696.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,021.64 : 160,113.22 = 65,720.68 : x
  2. Step 2: Convert to fraction form
    116,021.64/160,113.22 = 65,720.68/x
  3. Step 3: Cross multiply
    116,021.64x = 160,113.22 × 65,720.68
  4. Step 4: Simplify right side
    116,021.64x = 10,522,749,695.39
  5. Step 5: Solve for x
    x = 10,522,749,695.39/116,021.64
  6. Step 6: Final answer
    x = 90,696.44

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1.5x scale

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.