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Finding the Fourth Proportional to 124,095.51, 186,236.82 and 90,900.63

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Solution

The fourth proportional to 124,095.51, 186,236.82 and 90,900.63 is: 136,419.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,095.51 : 186,236.82 = 90,900.63 : x
  2. Step 2: Convert to fraction form
    124,095.51/186,236.82 = 90,900.63/x
  3. Step 3: Cross multiply
    124,095.51x = 186,236.82 × 90,900.63
  4. Step 4: Simplify right side
    124,095.51x = 16,929,044,267.20
  5. Step 5: Solve for x
    x = 16,929,044,267.20/124,095.51
  6. Step 6: Final answer
    x = 136,419.47

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