Home / 78,151.08-117,241.02-25,563.48

Finding the Fourth Proportional to 78,151.08, 117,241.02 and 25,563.48

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Solution

The fourth proportional to 78,151.08, 117,241.02 and 25,563.48 is: 38,349.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,151.08 : 117,241.02 = 25,563.48 : x
  2. Step 2: Convert to fraction form
    78,151.08/117,241.02 = 25,563.48/x
  3. Step 3: Cross multiply
    78,151.08x = 117,241.02 × 25,563.48
  4. Step 4: Simplify right side
    78,151.08x = 2,997,088,469.95
  5. Step 5: Solve for x
    x = 2,997,088,469.95/78,151.08
  6. Step 6: Final answer
    x = 38,349.93

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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.