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Finding the Fourth Proportional to 173,880.40, 260,674.80 and 90,774.40

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Solution

The fourth proportional to 173,880.40, 260,674.80 and 90,774.40 is: 136,085.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,880.40 : 260,674.80 = 90,774.40 : x
  2. Step 2: Convert to fraction form
    173,880.40/260,674.80 = 90,774.40/x
  3. Step 3: Cross multiply
    173,880.40x = 260,674.80 × 90,774.40
  4. Step 4: Simplify right side
    173,880.40x = 23,662,598,565.12
  5. Step 5: Solve for x
    x = 23,662,598,565.12/173,880.40
  6. Step 6: Final answer
    x = 136,085.48

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