Home / 100,626.28-139,005.95-95,311.87

Finding the Fourth Proportional to 100,626.28, 139,005.95 and 95,311.87

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Solution

The fourth proportional to 100,626.28, 139,005.95 and 95,311.87 is: 131,664.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,626.28 : 139,005.95 = 95,311.87 : x
  2. Step 2: Convert to fraction form
    100,626.28/139,005.95 = 95,311.87/x
  3. Step 3: Cross multiply
    100,626.28x = 139,005.95 × 95,311.87
  4. Step 4: Simplify right side
    100,626.28x = 13,248,917,035.63
  5. Step 5: Solve for x
    x = 13,248,917,035.63/100,626.28
  6. Step 6: Final answer
    x = 131,664.58

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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.