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Finding the Fourth Proportional to 103,423.19, 155,143.72 and 28,543.34

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Solution

The fourth proportional to 103,423.19, 155,143.72 and 28,543.34 is: 42,817.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,423.19 : 155,143.72 = 28,543.34 : x
  2. Step 2: Convert to fraction form
    103,423.19/155,143.72 = 28,543.34/x
  3. Step 3: Cross multiply
    103,423.19x = 155,143.72 × 28,543.34
  4. Step 4: Simplify right side
    103,423.19x = 4,428,320,502.70
  5. Step 5: Solve for x
    x = 4,428,320,502.70/103,423.19
  6. Step 6: Final answer
    x = 42,817.48

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