Home / 131,686.20-197,462.07-42,882.66

Finding the Fourth Proportional to 131,686.20, 197,462.07 and 42,882.66

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Solution

The fourth proportional to 131,686.20, 197,462.07 and 42,882.66 is: 64,302.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,686.20 : 197,462.07 = 42,882.66 : x
  2. Step 2: Convert to fraction form
    131,686.20/197,462.07 = 42,882.66/x
  3. Step 3: Cross multiply
    131,686.20x = 197,462.07 × 42,882.66
  4. Step 4: Simplify right side
    131,686.20x = 8,467,698,810.71
  5. Step 5: Solve for x
    x = 8,467,698,810.71/131,686.20
  6. Step 6: Final answer
    x = 64,302.10

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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.