Home / 111,618.19-167,026.33-81,962.47

Finding the Fourth Proportional to 111,618.19, 167,026.33 and 81,962.47

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Solution

The fourth proportional to 111,618.19, 167,026.33 and 81,962.47 is: 122,649.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,618.19 : 167,026.33 = 81,962.47 : x
  2. Step 2: Convert to fraction form
    111,618.19/167,026.33 = 81,962.47/x
  3. Step 3: Cross multiply
    111,618.19x = 167,026.33 × 81,962.47
  4. Step 4: Simplify right side
    111,618.19x = 13,689,890,561.84
  5. Step 5: Solve for x
    x = 13,689,890,561.84/111,618.19
  6. Step 6: Final answer
    x = 122,649.28

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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.