Home / 111,305.16-167,012.55-52,130.61

Finding the Fourth Proportional to 111,305.16, 167,012.55 and 52,130.61

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Solution

The fourth proportional to 111,305.16, 167,012.55 and 52,130.61 is: 78,221.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,305.16 : 167,012.55 = 52,130.61 : x
  2. Step 2: Convert to fraction form
    111,305.16/167,012.55 = 52,130.61/x
  3. Step 3: Cross multiply
    111,305.16x = 167,012.55 × 52,130.61
  4. Step 4: Simplify right side
    111,305.16x = 8,706,466,109.16
  5. Step 5: Solve for x
    x = 8,706,466,109.16/111,305.16
  6. Step 6: Final answer
    x = 78,221.59

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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.