Home / 112,023.60-168,035.40-84,375.60

Finding the Fourth Proportional to 112,023.60, 168,035.40 and 84,375.60

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Solution

The fourth proportional to 112,023.60, 168,035.40 and 84,375.60 is: 126,563.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,023.60 : 168,035.40 = 84,375.60 : x
  2. Step 2: Convert to fraction form
    112,023.60/168,035.40 = 84,375.60/x
  3. Step 3: Cross multiply
    112,023.60x = 168,035.40 × 84,375.60
  4. Step 4: Simplify right side
    112,023.60x = 14,178,087,696.24
  5. Step 5: Solve for x
    x = 14,178,087,696.24/112,023.60
  6. Step 6: Final answer
    x = 126,563.40

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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.