Home / 100,740.92-139,027.17-58,291.24

Finding the Fourth Proportional to 100,740.92, 139,027.17 and 58,291.24

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Solution

The fourth proportional to 100,740.92, 139,027.17 and 58,291.24 is: 80,444.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,740.92 : 139,027.17 = 58,291.24 : x
  2. Step 2: Convert to fraction form
    100,740.92/139,027.17 = 58,291.24/x
  3. Step 3: Cross multiply
    100,740.92x = 139,027.17 × 58,291.24
  4. Step 4: Simplify right side
    100,740.92x = 8,104,066,132.99
  5. Step 5: Solve for x
    x = 8,104,066,132.99/100,740.92
  6. Step 6: Final answer
    x = 80,444.63

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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.