Home / 103,255.35-142,490.10-57,932.52

Finding the Fourth Proportional to 103,255.35, 142,490.10 and 57,932.52

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Solution

The fourth proportional to 103,255.35, 142,490.10 and 57,932.52 is: 79,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,255.35 : 142,490.10 = 57,932.52 : x
  2. Step 2: Convert to fraction form
    103,255.35/142,490.10 = 57,932.52/x
  3. Step 3: Cross multiply
    103,255.35x = 142,490.10 × 57,932.52
  4. Step 4: Simplify right side
    103,255.35x = 8,254,810,568.05
  5. Step 5: Solve for x
    x = 8,254,810,568.05/103,255.35
  6. Step 6: Final answer
    x = 79,945.60

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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.