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Finding the Fourth Proportional to 163,404.76, 225,515.10 and 99,779.80

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Solution

The fourth proportional to 163,404.76, 225,515.10 and 99,779.80 is: 137,706.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,404.76 : 225,515.10 = 99,779.80 : x
  2. Step 2: Convert to fraction form
    163,404.76/225,515.10 = 99,779.80/x
  3. Step 3: Cross multiply
    163,404.76x = 225,515.10 × 99,779.80
  4. Step 4: Simplify right side
    163,404.76x = 22,501,851,574.98
  5. Step 5: Solve for x
    x = 22,501,851,574.98/163,404.76
  6. Step 6: Final answer
    x = 137,706.22

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