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Finding the Fourth Proportional to 148,528, 204,978.36 and 81,460

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Solution

The fourth proportional to 148,528, 204,978.36 and 81,460 is: 112,420.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,528 : 204,978.36 = 81,460 : x
  2. Step 2: Convert to fraction form
    148,528/204,978.36 = 81,460/x
  3. Step 3: Cross multiply
    148,528x = 204,978.36 × 81,460
  4. Step 4: Simplify right side
    148,528x = 16,697,537,205.60
  5. Step 5: Solve for x
    x = 16,697,537,205.60/148,528
  6. Step 6: Final answer
    x = 112,420.13

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