Home / 100,823.98-151,135.80-48,172

Finding the Fourth Proportional to 100,823.98, 151,135.80 and 48,172

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Solution

The fourth proportional to 100,823.98, 151,135.80 and 48,172 is: 72,210.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,823.98 : 151,135.80 = 48,172 : x
  2. Step 2: Convert to fraction form
    100,823.98/151,135.80 = 48,172/x
  3. Step 3: Cross multiply
    100,823.98x = 151,135.80 × 48,172
  4. Step 4: Simplify right side
    100,823.98x = 7,280,513,757.60
  5. Step 5: Solve for x
    x = 7,280,513,757.60/100,823.98
  6. Step 6: Final answer
    x = 72,210.14

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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.