Home / 140,345.13-193,676.45-76,682.93

Finding the Fourth Proportional to 140,345.13, 193,676.45 and 76,682.93

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Solution

The fourth proportional to 140,345.13, 193,676.45 and 76,682.93 is: 105,822.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,345.13 : 193,676.45 = 76,682.93 : x
  2. Step 2: Convert to fraction form
    140,345.13/193,676.45 = 76,682.93/x
  3. Step 3: Cross multiply
    140,345.13x = 193,676.45 × 76,682.93
  4. Step 4: Simplify right side
    140,345.13x = 14,851,677,658.00
  5. Step 5: Solve for x
    x = 14,851,677,658.00/140,345.13
  6. Step 6: Final answer
    x = 105,822.54

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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.