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Finding the Fourth Proportional to 99,510.40, 149,265.60 and 57,462.40

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Solution

The fourth proportional to 99,510.40, 149,265.60 and 57,462.40 is: 86,193.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,510.40 : 149,265.60 = 57,462.40 : x
  2. Step 2: Convert to fraction form
    99,510.40/149,265.60 = 57,462.40/x
  3. Step 3: Cross multiply
    99,510.40x = 149,265.60 × 57,462.40
  4. Step 4: Simplify right side
    99,510.40x = 8,577,159,613.44
  5. Step 5: Solve for x
    x = 8,577,159,613.44/99,510.40
  6. Step 6: Final answer
    x = 86,193.60

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