Home / 78,160.90-117,266.46-25,558.42

Finding the Fourth Proportional to 78,160.90, 117,266.46 and 25,558.42

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Solution

The fourth proportional to 78,160.90, 117,266.46 and 25,558.42 is: 38,345.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,160.90 : 117,266.46 = 25,558.42 : x
  2. Step 2: Convert to fraction form
    78,160.90/117,266.46 = 25,558.42/x
  3. Step 3: Cross multiply
    78,160.90x = 117,266.46 × 25,558.42
  4. Step 4: Simplify right side
    78,160.90x = 2,997,145,436.59
  5. Step 5: Solve for x
    x = 2,997,145,436.59/78,160.90
  6. Step 6: Final answer
    x = 38,345.84

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1.5x scale

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.