Home / 78,152.76-117,146.52-25,548.12

Finding the Fourth Proportional to 78,152.76, 117,146.52 and 25,548.12

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Solution

The fourth proportional to 78,152.76, 117,146.52 and 25,548.12 is: 38,295.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,152.76 : 117,146.52 = 25,548.12 : x
  2. Step 2: Convert to fraction form
    78,152.76/117,146.52 = 25,548.12/x
  3. Step 3: Cross multiply
    78,152.76x = 117,146.52 × 25,548.12
  4. Step 4: Simplify right side
    78,152.76x = 2,992,873,350.54
  5. Step 5: Solve for x
    x = 2,992,873,350.54/78,152.76
  6. Step 6: Final answer
    x = 38,295.17

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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.