Home / 131,822.40-197,864.84-72,685.92

Finding the Fourth Proportional to 131,822.40, 197,864.84 and 72,685.92

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Solution

The fourth proportional to 131,822.40, 197,864.84 and 72,685.92 is: 109,101.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,822.40 : 197,864.84 = 72,685.92 : x
  2. Step 2: Convert to fraction form
    131,822.40/197,864.84 = 72,685.92/x
  3. Step 3: Cross multiply
    131,822.40x = 197,864.84 × 72,685.92
  4. Step 4: Simplify right side
    131,822.40x = 14,381,987,567.62
  5. Step 5: Solve for x
    x = 14,381,987,567.62/131,822.40
  6. Step 6: Final answer
    x = 109,101.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.