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Finding the Fourth Proportional to 138,802.79, 191,547.81 and 75,140.54

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Solution

The fourth proportional to 138,802.79, 191,547.81 and 75,140.54 is: 103,693.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,802.79 : 191,547.81 = 75,140.54 : x
  2. Step 2: Convert to fraction form
    138,802.79/191,547.81 = 75,140.54/x
  3. Step 3: Cross multiply
    138,802.79x = 191,547.81 × 75,140.54
  4. Step 4: Simplify right side
    138,802.79x = 14,393,005,879.22
  5. Step 5: Solve for x
    x = 14,393,005,879.22/138,802.79
  6. Step 6: Final answer
    x = 103,693.92

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