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Finding the Fourth Proportional to 151,364.81, 208,908.05 and 87,739.52

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Solution

The fourth proportional to 151,364.81, 208,908.05 and 87,739.52 is: 121,094.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,364.81 : 208,908.05 = 87,739.52 : x
  2. Step 2: Convert to fraction form
    151,364.81/208,908.05 = 87,739.52/x
  3. Step 3: Cross multiply
    151,364.81x = 208,908.05 × 87,739.52
  4. Step 4: Simplify right side
    151,364.81x = 18,329,490,547.90
  5. Step 5: Solve for x
    x = 18,329,490,547.90/151,364.81
  6. Step 6: Final answer
    x = 121,094.79

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