Home / 117,255.61-161,812.11-63,539.25

Finding the Fourth Proportional to 117,255.61, 161,812.11 and 63,539.25

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Solution

The fourth proportional to 117,255.61, 161,812.11 and 63,539.25 is: 87,683.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,255.61 : 161,812.11 = 63,539.25 : x
  2. Step 2: Convert to fraction form
    117,255.61/161,812.11 = 63,539.25/x
  3. Step 3: Cross multiply
    117,255.61x = 161,812.11 × 63,539.25
  4. Step 4: Simplify right side
    117,255.61x = 10,281,420,110.32
  5. Step 5: Solve for x
    x = 10,281,420,110.32/117,255.61
  6. Step 6: Final answer
    x = 87,683.82

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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.