Home / 111,917.30-167,746.35-45,313.70

Finding the Fourth Proportional to 111,917.30, 167,746.35 and 45,313.70

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Solution

The fourth proportional to 111,917.30, 167,746.35 and 45,313.70 is: 67,918.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,917.30 : 167,746.35 = 45,313.70 : x
  2. Step 2: Convert to fraction form
    111,917.30/167,746.35 = 45,313.70/x
  3. Step 3: Cross multiply
    111,917.30x = 167,746.35 × 45,313.70
  4. Step 4: Simplify right side
    111,917.30x = 7,601,207,780.00
  5. Step 5: Solve for x
    x = 7,601,207,780.00/111,917.30
  6. Step 6: Final answer
    x = 67,918.08

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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.