Home / 78,197.04-117,295.56-25,606.80

Finding the Fourth Proportional to 78,197.04, 117,295.56 and 25,606.80

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Solution

The fourth proportional to 78,197.04, 117,295.56 and 25,606.80 is: 38,410.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,197.04 : 117,295.56 = 25,606.80 : x
  2. Step 2: Convert to fraction form
    78,197.04/117,295.56 = 25,606.80/x
  3. Step 3: Cross multiply
    78,197.04x = 117,295.56 × 25,606.80
  4. Step 4: Simplify right side
    78,197.04x = 3,003,563,945.81
  5. Step 5: Solve for x
    x = 3,003,563,945.81/78,197.04
  6. Step 6: Final answer
    x = 38,410.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.