Home / 140,121.60-193,364.16-76,460.16

Finding the Fourth Proportional to 140,121.60, 193,364.16 and 76,460.16

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Solution

The fourth proportional to 140,121.60, 193,364.16 and 76,460.16 is: 105,513.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,121.60 : 193,364.16 = 76,460.16 : x
  2. Step 2: Convert to fraction form
    140,121.60/193,364.16 = 76,460.16/x
  3. Step 3: Cross multiply
    140,121.60x = 193,364.16 × 76,460.16
  4. Step 4: Simplify right side
    140,121.60x = 14,784,654,611.87
  5. Step 5: Solve for x
    x = 14,784,654,611.87/140,121.60
  6. Step 6: Final answer
    x = 105,513.03

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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.