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Finding the Fourth Proportional to 98,573.40, 147,860.10 and 87,492.60

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Solution

The fourth proportional to 98,573.40, 147,860.10 and 87,492.60 is: 131,238.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,573.40 : 147,860.10 = 87,492.60 : x
  2. Step 2: Convert to fraction form
    98,573.40/147,860.10 = 87,492.60/x
  3. Step 3: Cross multiply
    98,573.40x = 147,860.10 × 87,492.60
  4. Step 4: Simplify right side
    98,573.40x = 12,936,664,585.26
  5. Step 5: Solve for x
    x = 12,936,664,585.26/98,573.40
  6. Step 6: Final answer
    x = 131,238.90

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