Home / 100,785.96-139,105.62-60,501.42

Finding the Fourth Proportional to 100,785.96, 139,105.62 and 60,501.42

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Solution

The fourth proportional to 100,785.96, 139,105.62 and 60,501.42 is: 83,504.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,785.96 : 139,105.62 = 60,501.42 : x
  2. Step 2: Convert to fraction form
    100,785.96/139,105.62 = 60,501.42/x
  3. Step 3: Cross multiply
    100,785.96x = 139,105.62 × 60,501.42
  4. Step 4: Simplify right side
    100,785.96x = 8,416,087,539.98
  5. Step 5: Solve for x
    x = 8,416,087,539.98/100,785.96
  6. Step 6: Final answer
    x = 83,504.56

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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.