Home / 112,065.40-168,098.10-80,572.60

Finding the Fourth Proportional to 112,065.40, 168,098.10 and 80,572.60

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Solution

The fourth proportional to 112,065.40, 168,098.10 and 80,572.60 is: 120,858.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,065.40 : 168,098.10 = 80,572.60 : x
  2. Step 2: Convert to fraction form
    112,065.40/168,098.10 = 80,572.60/x
  3. Step 3: Cross multiply
    112,065.40x = 168,098.10 × 80,572.60
  4. Step 4: Simplify right side
    112,065.40x = 13,544,100,972.06
  5. Step 5: Solve for x
    x = 13,544,100,972.06/112,065.40
  6. Step 6: Final answer
    x = 120,858.90

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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.