Home / 140,066.59-193,293.29-76,405.72

Finding the Fourth Proportional to 140,066.59, 193,293.29 and 76,405.72

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Solution

The fourth proportional to 140,066.59, 193,293.29 and 76,405.72 is: 105,440.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,066.59 : 193,293.29 = 76,405.72 : x
  2. Step 2: Convert to fraction form
    140,066.59/193,293.29 = 76,405.72/x
  3. Step 3: Cross multiply
    140,066.59x = 193,293.29 × 76,405.72
  4. Step 4: Simplify right side
    140,066.59x = 14,768,712,993.62
  5. Step 5: Solve for x
    x = 14,768,712,993.62/140,066.59
  6. Step 6: Final answer
    x = 105,440.66

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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.