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Finding the Fourth Proportional to 99,315.40, 148,973.10 and 92,025.40

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Solution

The fourth proportional to 99,315.40, 148,973.10 and 92,025.40 is: 138,038.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,315.40 : 148,973.10 = 92,025.40 : x
  2. Step 2: Convert to fraction form
    99,315.40/148,973.10 = 92,025.40/x
  3. Step 3: Cross multiply
    99,315.40x = 148,973.10 × 92,025.40
  4. Step 4: Simplify right side
    99,315.40x = 13,709,309,116.74
  5. Step 5: Solve for x
    x = 13,709,309,116.74/99,315.40
  6. Step 6: Final answer
    x = 138,038.10

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