Home / 111,928.12-167,892-76,761.16

Finding the Fourth Proportional to 111,928.12, 167,892 and 76,761.16

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Solution

The fourth proportional to 111,928.12, 167,892 and 76,761.16 is: 115,141.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,928.12 : 167,892 = 76,761.16 : x
  2. Step 2: Convert to fraction form
    111,928.12/167,892 = 76,761.16/x
  3. Step 3: Cross multiply
    111,928.12x = 167,892 × 76,761.16
  4. Step 4: Simplify right side
    111,928.12x = 12,887,584,674.72
  5. Step 5: Solve for x
    x = 12,887,584,674.72/111,928.12
  6. Step 6: Final answer
    x = 115,141.62

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1.5x scale

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.