Home / 112,077.40-168,116.10-80,584.60

Finding the Fourth Proportional to 112,077.40, 168,116.10 and 80,584.60

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Solution

The fourth proportional to 112,077.40, 168,116.10 and 80,584.60 is: 120,876.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,077.40 : 168,116.10 = 80,584.60 : x
  2. Step 2: Convert to fraction form
    112,077.40/168,116.10 = 80,584.60/x
  3. Step 3: Cross multiply
    112,077.40x = 168,116.10 × 80,584.60
  4. Step 4: Simplify right side
    112,077.40x = 13,547,568,672.06
  5. Step 5: Solve for x
    x = 13,547,568,672.06/112,077.40
  6. Step 6: Final answer
    x = 120,876.90

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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.