Home / 103,171.34-154,780.25-36,611.38

Finding the Fourth Proportional to 103,171.34, 154,780.25 and 36,611.38

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Solution

The fourth proportional to 103,171.34, 154,780.25 and 36,611.38 is: 54,925.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,171.34 : 154,780.25 = 36,611.38 : x
  2. Step 2: Convert to fraction form
    103,171.34/154,780.25 = 36,611.38/x
  3. Step 3: Cross multiply
    103,171.34x = 154,780.25 × 36,611.38
  4. Step 4: Simplify right side
    103,171.34x = 5,666,718,549.25
  5. Step 5: Solve for x
    x = 5,666,718,549.25/103,171.34
  6. Step 6: Final answer
    x = 54,925.32

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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.