Home / 140,387.56-193,734.38-76,725.34

Finding the Fourth Proportional to 140,387.56, 193,734.38 and 76,725.34

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Solution

The fourth proportional to 140,387.56, 193,734.38 and 76,725.34 is: 105,880.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,387.56 : 193,734.38 = 76,725.34 : x
  2. Step 2: Convert to fraction form
    140,387.56/193,734.38 = 76,725.34/x
  3. Step 3: Cross multiply
    140,387.56x = 193,734.38 × 76,725.34
  4. Step 4: Simplify right side
    140,387.56x = 14,864,336,175.19
  5. Step 5: Solve for x
    x = 14,864,336,175.19/140,387.56
  6. Step 6: Final answer
    x = 105,880.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.