Home / 101,604.12-140,282.18-63,421.82

Finding the Fourth Proportional to 101,604.12, 140,282.18 and 63,421.82

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Solution

The fourth proportional to 101,604.12, 140,282.18 and 63,421.82 is: 87,564.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,604.12 : 140,282.18 = 63,421.82 : x
  2. Step 2: Convert to fraction form
    101,604.12/140,282.18 = 63,421.82/x
  3. Step 3: Cross multiply
    101,604.12x = 140,282.18 × 63,421.82
  4. Step 4: Simplify right side
    101,604.12x = 8,896,950,150.65
  5. Step 5: Solve for x
    x = 8,896,950,150.65/101,604.12
  6. Step 6: Final answer
    x = 87,564.86

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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.