Home / 114,780.56-172,072.24-39,890.98

Finding the Fourth Proportional to 114,780.56, 172,072.24 and 39,890.98

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Solution

The fourth proportional to 114,780.56, 172,072.24 and 39,890.98 is: 59,802.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,780.56 : 172,072.24 = 39,890.98 : x
  2. Step 2: Convert to fraction form
    114,780.56/172,072.24 = 39,890.98/x
  3. Step 3: Cross multiply
    114,780.56x = 172,072.24 × 39,890.98
  4. Step 4: Simplify right side
    114,780.56x = 6,864,129,754.49
  5. Step 5: Solve for x
    x = 6,864,129,754.49/114,780.56
  6. Step 6: Final answer
    x = 59,802.20

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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.