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Finding the Fourth Proportional to 165,005.58, 247,089.71 and 138,281.30

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Solution

The fourth proportional to 165,005.58, 247,089.71 and 138,281.30 is: 207,071.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,005.58 : 247,089.71 = 138,281.30 : x
  2. Step 2: Convert to fraction form
    165,005.58/247,089.71 = 138,281.30/x
  3. Step 3: Cross multiply
    165,005.58x = 247,089.71 × 138,281.30
  4. Step 4: Simplify right side
    165,005.58x = 34,167,886,315.42
  5. Step 5: Solve for x
    x = 34,167,886,315.42/165,005.58
  6. Step 6: Final answer
    x = 207,071.10

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