Home / 100,826.75-139,140.97-55,506.49

Finding the Fourth Proportional to 100,826.75, 139,140.97 and 55,506.49

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Solution

The fourth proportional to 100,826.75, 139,140.97 and 55,506.49 is: 76,598.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,826.75 : 139,140.97 = 55,506.49 : x
  2. Step 2: Convert to fraction form
    100,826.75/139,140.97 = 55,506.49/x
  3. Step 3: Cross multiply
    100,826.75x = 139,140.97 × 55,506.49
  4. Step 4: Simplify right side
    100,826.75x = 7,723,226,373.28
  5. Step 5: Solve for x
    x = 7,723,226,373.28/100,826.75
  6. Step 6: Final answer
    x = 76,598.98

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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.