Home / 100,374.03-138,515.99-57,932.52

Finding the Fourth Proportional to 100,374.03, 138,515.99 and 57,932.52

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Solution

The fourth proportional to 100,374.03, 138,515.99 and 57,932.52 is: 79,946.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,374.03 : 138,515.99 = 57,932.52 : x
  2. Step 2: Convert to fraction form
    100,374.03/138,515.99 = 57,932.52/x
  3. Step 3: Cross multiply
    100,374.03x = 138,515.99 × 57,932.52
  4. Step 4: Simplify right side
    100,374.03x = 8,024,580,071.33
  5. Step 5: Solve for x
    x = 8,024,580,071.33/100,374.03
  6. Step 6: Final answer
    x = 79,946.78

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1.5x scale

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.