Home / 102,468.50-141,406.26-57,146.54

Finding the Fourth Proportional to 102,468.50, 141,406.26 and 57,146.54

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Solution

The fourth proportional to 102,468.50, 141,406.26 and 57,146.54 is: 78,862.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,468.50 : 141,406.26 = 57,146.54 : x
  2. Step 2: Convert to fraction form
    102,468.50/141,406.26 = 57,146.54/x
  3. Step 3: Cross multiply
    102,468.50x = 141,406.26 × 57,146.54
  4. Step 4: Simplify right side
    102,468.50x = 8,080,878,493.34
  5. Step 5: Solve for x
    x = 8,080,878,493.34/102,468.50
  6. Step 6: Final answer
    x = 78,862.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.