Home / 131,815.21-197,681.90-47,564.44

Finding the Fourth Proportional to 131,815.21, 197,681.90 and 47,564.44

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Solution

The fourth proportional to 131,815.21, 197,681.90 and 47,564.44 is: 71,331.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,815.21 : 197,681.90 = 47,564.44 : x
  2. Step 2: Convert to fraction form
    131,815.21/197,681.90 = 47,564.44/x
  3. Step 3: Cross multiply
    131,815.21x = 197,681.90 × 47,564.44
  4. Step 4: Simplify right side
    131,815.21x = 9,402,628,317.98
  5. Step 5: Solve for x
    x = 9,402,628,317.98/131,815.21
  6. Step 6: Final answer
    x = 71,331.89

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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.