Home / 100,267.46-138,355.90-59,966.51

Finding the Fourth Proportional to 100,267.46, 138,355.90 and 59,966.51

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Solution

The fourth proportional to 100,267.46, 138,355.90 and 59,966.51 is: 82,745.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,267.46 : 138,355.90 = 59,966.51 : x
  2. Step 2: Convert to fraction form
    100,267.46/138,355.90 = 59,966.51/x
  3. Step 3: Cross multiply
    100,267.46x = 138,355.90 × 59,966.51
  4. Step 4: Simplify right side
    100,267.46x = 8,296,720,460.91
  5. Step 5: Solve for x
    x = 8,296,720,460.91/100,267.46
  6. Step 6: Final answer
    x = 82,745.89

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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.