Home / 112,438.20-168,560.10-68,017.80

Finding the Fourth Proportional to 112,438.20, 168,560.10 and 68,017.80

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Solution

The fourth proportional to 112,438.20, 168,560.10 and 68,017.80 is: 101,967.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,438.20 : 168,560.10 = 68,017.80 : x
  2. Step 2: Convert to fraction form
    112,438.20/168,560.10 = 68,017.80/x
  3. Step 3: Cross multiply
    112,438.20x = 168,560.10 × 68,017.80
  4. Step 4: Simplify right side
    112,438.20x = 11,465,087,169.78
  5. Step 5: Solve for x
    x = 11,465,087,169.78/112,438.20
  6. Step 6: Final answer
    x = 101,967.90

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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.