Home / 112,387.20-168,580.80-45,793.05

Finding the Fourth Proportional to 112,387.20, 168,580.80 and 45,793.05

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Solution

The fourth proportional to 112,387.20, 168,580.80 and 45,793.05 is: 68,689.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,387.20 : 168,580.80 = 45,793.05 : x
  2. Step 2: Convert to fraction form
    112,387.20/168,580.80 = 45,793.05/x
  3. Step 3: Cross multiply
    112,387.20x = 168,580.80 × 45,793.05
  4. Step 4: Simplify right side
    112,387.20x = 7,719,829,003.44
  5. Step 5: Solve for x
    x = 7,719,829,003.44/112,387.20
  6. Step 6: Final answer
    x = 68,689.58

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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.