Home / 131,206.84-196,760.85-42,436.51

Finding the Fourth Proportional to 131,206.84, 196,760.85 and 42,436.51

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Solution

The fourth proportional to 131,206.84, 196,760.85 and 42,436.51 is: 63,638.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,206.84 : 196,760.85 = 42,436.51 : x
  2. Step 2: Convert to fraction form
    131,206.84/196,760.85 = 42,436.51/x
  3. Step 3: Cross multiply
    131,206.84x = 196,760.85 × 42,436.51
  4. Step 4: Simplify right side
    131,206.84x = 8,349,843,127.59
  5. Step 5: Solve for x
    x = 8,349,843,127.59/131,206.84
  6. Step 6: Final answer
    x = 63,638.78

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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.