Home / 140,335.72-193,666.08-76,677.46

Finding the Fourth Proportional to 140,335.72, 193,666.08 and 76,677.46

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Solution

The fourth proportional to 140,335.72, 193,666.08 and 76,677.46 is: 105,816.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,335.72 : 193,666.08 = 76,677.46 : x
  2. Step 2: Convert to fraction form
    140,335.72/193,666.08 = 76,677.46/x
  3. Step 3: Cross multiply
    140,335.72x = 193,666.08 × 76,677.46
  4. Step 4: Simplify right side
    140,335.72x = 14,849,823,102.56
  5. Step 5: Solve for x
    x = 14,849,823,102.56/140,335.72
  6. Step 6: Final answer
    x = 105,816.42

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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.