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Finding the Fourth Proportional to 103,461.80, 155,192.70 and 61,471.40

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Solution

The fourth proportional to 103,461.80, 155,192.70 and 61,471.40 is: 92,207.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,461.80 : 155,192.70 = 61,471.40 : x
  2. Step 2: Convert to fraction form
    103,461.80/155,192.70 = 61,471.40/x
  3. Step 3: Cross multiply
    103,461.80x = 155,192.70 × 61,471.40
  4. Step 4: Simplify right side
    103,461.80x = 9,539,912,538.78
  5. Step 5: Solve for x
    x = 9,539,912,538.78/103,461.80
  6. Step 6: Final answer
    x = 92,207.10

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