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Finding the Fourth Proportional to 113,792.60, 170,688.90 and 71,802.20

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Solution

The fourth proportional to 113,792.60, 170,688.90 and 71,802.20 is: 107,703.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,792.60 : 170,688.90 = 71,802.20 : x
  2. Step 2: Convert to fraction form
    113,792.60/170,688.90 = 71,802.20/x
  3. Step 3: Cross multiply
    113,792.60x = 170,688.90 × 71,802.20
  4. Step 4: Simplify right side
    113,792.60x = 12,255,838,535.58
  5. Step 5: Solve for x
    x = 12,255,838,535.58/113,792.60
  6. Step 6: Final answer
    x = 107,703.30

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