Home / 117,023.45-161,492.21-63,308.30

Finding the Fourth Proportional to 117,023.45, 161,492.21 and 63,308.30

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Solution

The fourth proportional to 117,023.45, 161,492.21 and 63,308.30 is: 87,365.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,023.45 : 161,492.21 = 63,308.30 : x
  2. Step 2: Convert to fraction form
    117,023.45/161,492.21 = 63,308.30/x
  3. Step 3: Cross multiply
    117,023.45x = 161,492.21 × 63,308.30
  4. Step 4: Simplify right side
    117,023.45x = 10,223,796,391.75
  5. Step 5: Solve for x
    x = 10,223,796,391.75/117,023.45
  6. Step 6: Final answer
    x = 87,365.37

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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.