Home / 140,186.16-193,451.40-76,523.88

Finding the Fourth Proportional to 140,186.16, 193,451.40 and 76,523.88

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Solution

The fourth proportional to 140,186.16, 193,451.40 and 76,523.88 is: 105,599.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,186.16 : 193,451.40 = 76,523.88 : x
  2. Step 2: Convert to fraction form
    140,186.16/193,451.40 = 76,523.88/x
  3. Step 3: Cross multiply
    140,186.16x = 193,451.40 × 76,523.88
  4. Step 4: Simplify right side
    140,186.16x = 14,803,651,719.43
  5. Step 5: Solve for x
    x = 14,803,651,719.43/140,186.16
  6. Step 6: Final answer
    x = 105,599.95

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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.