Home / 112,143.65-168,025.06-67,676.98

Finding the Fourth Proportional to 112,143.65, 168,025.06 and 67,676.98

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Solution

The fourth proportional to 112,143.65, 168,025.06 and 67,676.98 is: 101,400.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,143.65 : 168,025.06 = 67,676.98 : x
  2. Step 2: Convert to fraction form
    112,143.65/168,025.06 = 67,676.98/x
  3. Step 3: Cross multiply
    112,143.65x = 168,025.06 × 67,676.98
  4. Step 4: Simplify right side
    112,143.65x = 11,371,428,625.12
  5. Step 5: Solve for x
    x = 11,371,428,625.12/112,143.65
  6. Step 6: Final answer
    x = 101,400.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.