Home / 140,548.86-193,957.08-76,886.51

Finding the Fourth Proportional to 140,548.86, 193,957.08 and 76,886.51

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Solution

The fourth proportional to 140,548.86, 193,957.08 and 76,886.51 is: 106,103.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,548.86 : 193,957.08 = 76,886.51 : x
  2. Step 2: Convert to fraction form
    140,548.86/193,957.08 = 76,886.51/x
  3. Step 3: Cross multiply
    140,548.86x = 193,957.08 × 76,886.51
  4. Step 4: Simplify right side
    140,548.86x = 14,912,682,001.21
  5. Step 5: Solve for x
    x = 14,912,682,001.21/140,548.86
  6. Step 6: Final answer
    x = 106,103.19

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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.