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Finding the Fourth Proportional to 153,470.86, 211,761.72 and 85,486.10

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Solution

The fourth proportional to 153,470.86, 211,761.72 and 85,486.10 is: 117,955.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,470.86 : 211,761.72 = 85,486.10 : x
  2. Step 2: Convert to fraction form
    153,470.86/211,761.72 = 85,486.10/x
  3. Step 3: Cross multiply
    153,470.86x = 211,761.72 × 85,486.10
  4. Step 4: Simplify right side
    153,470.86x = 18,102,683,572.09
  5. Step 5: Solve for x
    x = 18,102,683,572.09/153,470.86
  6. Step 6: Final answer
    x = 117,955.18

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