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Finding the Fourth Proportional to 131,070.72, 180,820.56 and 83,298.48

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Solution

The fourth proportional to 131,070.72, 180,820.56 and 83,298.48 is: 114,915.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,070.72 : 180,820.56 = 83,298.48 : x
  2. Step 2: Convert to fraction form
    131,070.72/180,820.56 = 83,298.48/x
  3. Step 3: Cross multiply
    131,070.72x = 180,820.56 × 83,298.48
  4. Step 4: Simplify right side
    131,070.72x = 15,062,077,800.75
  5. Step 5: Solve for x
    x = 15,062,077,800.75/131,070.72
  6. Step 6: Final answer
    x = 114,915.66

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