Home / 100,972.60-151,466.10-30,851.80

Finding the Fourth Proportional to 100,972.60, 151,466.10 and 30,851.80

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Solution

The fourth proportional to 100,972.60, 151,466.10 and 30,851.80 is: 46,279.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,972.60 : 151,466.10 = 30,851.80 : x
  2. Step 2: Convert to fraction form
    100,972.60/151,466.10 = 30,851.80/x
  3. Step 3: Cross multiply
    100,972.60x = 151,466.10 × 30,851.80
  4. Step 4: Simplify right side
    100,972.60x = 4,673,001,823.98
  5. Step 5: Solve for x
    x = 4,673,001,823.98/100,972.60
  6. Step 6: Final answer
    x = 46,279.90

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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.