Home / 101,738.73-140,401.15-56,418.62

Finding the Fourth Proportional to 101,738.73, 140,401.15 and 56,418.62

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Solution

The fourth proportional to 101,738.73, 140,401.15 and 56,418.62 is: 77,858.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,738.73 : 140,401.15 = 56,418.62 : x
  2. Step 2: Convert to fraction form
    101,738.73/140,401.15 = 56,418.62/x
  3. Step 3: Cross multiply
    101,738.73x = 140,401.15 × 56,418.62
  4. Step 4: Simplify right side
    101,738.73x = 7,921,239,129.41
  5. Step 5: Solve for x
    x = 7,921,239,129.41/101,738.73
  6. Step 6: Final answer
    x = 77,858.64

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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.