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Finding the Fourth Proportional to 151,406.01, 208,894.04 and 87,731.51

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Solution

The fourth proportional to 151,406.01, 208,894.04 and 87,731.51 is: 121,042.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,406.01 : 208,894.04 = 87,731.51 : x
  2. Step 2: Convert to fraction form
    151,406.01/208,894.04 = 87,731.51/x
  3. Step 3: Cross multiply
    151,406.01x = 208,894.04 × 87,731.51
  4. Step 4: Simplify right side
    151,406.01x = 18,326,588,405.07
  5. Step 5: Solve for x
    x = 18,326,588,405.07/151,406.01
  6. Step 6: Final answer
    x = 121,042.67

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