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Finding the Fourth Proportional to 100,455.36, 150,678.08 and 37,287.76

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Solution

The fourth proportional to 100,455.36, 150,678.08 and 37,287.76 is: 55,929.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,455.36 : 150,678.08 = 37,287.76 : x
  2. Step 2: Convert to fraction form
    100,455.36/150,678.08 = 37,287.76/x
  3. Step 3: Cross multiply
    100,455.36x = 150,678.08 × 37,287.76
  4. Step 4: Simplify right side
    100,455.36x = 5,618,448,084.30
  5. Step 5: Solve for x
    x = 5,618,448,084.30/100,455.36
  6. Step 6: Final answer
    x = 55,929.80

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1.5x scale

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.