Home / 112,676.88-155,502-62,379.12

Finding the Fourth Proportional to 112,676.88, 155,502 and 62,379.12

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Solution

The fourth proportional to 112,676.88, 155,502 and 62,379.12 is: 86,087.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,676.88 : 155,502 = 62,379.12 : x
  2. Step 2: Convert to fraction form
    112,676.88/155,502 = 62,379.12/x
  3. Step 3: Cross multiply
    112,676.88x = 155,502 × 62,379.12
  4. Step 4: Simplify right side
    112,676.88x = 9,700,077,918.24
  5. Step 5: Solve for x
    x = 9,700,077,918.24/112,676.88
  6. Step 6: Final answer
    x = 86,087.56

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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.