Home / 140,120.39-193,364.53-76,459.25

Finding the Fourth Proportional to 140,120.39, 193,364.53 and 76,459.25

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Solution

The fourth proportional to 140,120.39, 193,364.53 and 76,459.25 is: 105,512.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,120.39 : 193,364.53 = 76,459.25 : x
  2. Step 2: Convert to fraction form
    140,120.39/193,364.53 = 76,459.25/x
  3. Step 3: Cross multiply
    140,120.39x = 193,364.53 × 76,459.25
  4. Step 4: Simplify right side
    140,120.39x = 14,784,506,940.40
  5. Step 5: Solve for x
    x = 14,784,506,940.40/140,120.39
  6. Step 6: Final answer
    x = 105,512.89

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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.