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Finding the Fourth Proportional to 131,689.96, 181,730.76 and 71,259.28

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Solution

The fourth proportional to 131,689.96, 181,730.76 and 71,259.28 is: 98,337.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,689.96 : 181,730.76 = 71,259.28 : x
  2. Step 2: Convert to fraction form
    131,689.96/181,730.76 = 71,259.28/x
  3. Step 3: Cross multiply
    131,689.96x = 181,730.76 × 71,259.28
  4. Step 4: Simplify right side
    131,689.96x = 12,950,003,111.45
  5. Step 5: Solve for x
    x = 12,950,003,111.45/131,689.96
  6. Step 6: Final answer
    x = 98,337.06

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