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Finding the Fourth Proportional to 101,738.97, 140,400.99 and 56,417.54

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Solution

The fourth proportional to 101,738.97, 140,400.99 and 56,417.54 is: 77,856.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,738.97 : 140,400.99 = 56,417.54 : x
  2. Step 2: Convert to fraction form
    101,738.97/140,400.99 = 56,417.54/x
  3. Step 3: Cross multiply
    101,738.97x = 140,400.99 × 56,417.54
  4. Step 4: Simplify right side
    101,738.97x = 7,921,077,767.36
  5. Step 5: Solve for x
    x = 7,921,077,767.36/101,738.97
  6. Step 6: Final answer
    x = 77,856.87

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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.