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Finding the Fourth Proportional to 145,396.23, 218,077.47 and 40,223.40

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Solution

The fourth proportional to 145,396.23, 218,077.47 and 40,223.40 is: 60,330.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,396.23 : 218,077.47 = 40,223.40 : x
  2. Step 2: Convert to fraction form
    145,396.23/218,077.47 = 40,223.40/x
  3. Step 3: Cross multiply
    145,396.23x = 218,077.47 × 40,223.40
  4. Step 4: Simplify right side
    145,396.23x = 8,771,817,306.80
  5. Step 5: Solve for x
    x = 8,771,817,306.80/145,396.23
  6. Step 6: Final answer
    x = 60,330.43

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