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Finding the Fourth Proportional to 159,351.86, 219,855.91 and 90,429.90

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Solution

The fourth proportional to 159,351.86, 219,855.91 and 90,429.90 is: 124,765.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,351.86 : 219,855.91 = 90,429.90 : x
  2. Step 2: Convert to fraction form
    159,351.86/219,855.91 = 90,429.90/x
  3. Step 3: Cross multiply
    159,351.86x = 219,855.91 × 90,429.90
  4. Step 4: Simplify right side
    159,351.86x = 19,881,547,955.71
  5. Step 5: Solve for x
    x = 19,881,547,955.71/159,351.86
  6. Step 6: Final answer
    x = 124,765.08

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