Home / 151,317.81-208,816.11-90,106.65

Finding the Fourth Proportional to 151,317.81, 208,816.11 and 90,106.65

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Solution

The fourth proportional to 151,317.81, 208,816.11 and 90,106.65 is: 124,345.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,317.81 : 208,816.11 = 90,106.65 : x
  2. Step 2: Convert to fraction form
    151,317.81/208,816.11 = 90,106.65/x
  3. Step 3: Cross multiply
    151,317.81x = 208,816.11 × 90,106.65
  4. Step 4: Simplify right side
    151,317.81x = 18,815,720,138.13
  5. Step 5: Solve for x
    x = 18,815,720,138.13/151,317.81
  6. Step 6: Final answer
    x = 124,345.71

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