Home / 110,580.36-152,499.66-81,971.30

Finding the Fourth Proportional to 110,580.36, 152,499.66 and 81,971.30

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Solution

The fourth proportional to 110,580.36, 152,499.66 and 81,971.30 is: 113,045.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,580.36 : 152,499.66 = 81,971.30 : x
  2. Step 2: Convert to fraction form
    110,580.36/152,499.66 = 81,971.30/x
  3. Step 3: Cross multiply
    110,580.36x = 152,499.66 × 81,971.30
  4. Step 4: Simplify right side
    110,580.36x = 12,500,594,617.26
  5. Step 5: Solve for x
    x = 12,500,594,617.26/110,580.36
  6. Step 6: Final answer
    x = 113,045.34

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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.