Home / 116,638.62-160,814.16-76,288.47

Finding the Fourth Proportional to 116,638.62, 160,814.16 and 76,288.47

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Solution

The fourth proportional to 116,638.62, 160,814.16 and 76,288.47 is: 105,181.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,638.62 : 160,814.16 = 76,288.47 : x
  2. Step 2: Convert to fraction form
    116,638.62/160,814.16 = 76,288.47/x
  3. Step 3: Cross multiply
    116,638.62x = 160,814.16 × 76,288.47
  4. Step 4: Simplify right side
    116,638.62x = 12,268,265,617.68
  5. Step 5: Solve for x
    x = 12,268,265,617.68/116,638.62
  6. Step 6: Final answer
    x = 105,181.85

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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.