Home / 140,342.86-193,670.88-76,679.29

Finding the Fourth Proportional to 140,342.86, 193,670.88 and 76,679.29

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Solution

The fourth proportional to 140,342.86, 193,670.88 and 76,679.29 is: 105,816.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,342.86 : 193,670.88 = 76,679.29 : x
  2. Step 2: Convert to fraction form
    140,342.86/193,670.88 = 76,679.29/x
  3. Step 3: Cross multiply
    140,342.86x = 193,670.88 × 76,679.29
  4. Step 4: Simplify right side
    140,342.86x = 14,850,544,603.72
  5. Step 5: Solve for x
    x = 14,850,544,603.72/140,342.86
  6. Step 6: Final answer
    x = 105,816.18

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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.