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Finding the Fourth Proportional to 100,610.08, 150,920.16 and 38,285.44

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Solution

The fourth proportional to 100,610.08, 150,920.16 and 38,285.44 is: 57,430.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,610.08 : 150,920.16 = 38,285.44 : x
  2. Step 2: Convert to fraction form
    100,610.08/150,920.16 = 38,285.44/x
  3. Step 3: Cross multiply
    100,610.08x = 150,920.16 × 38,285.44
  4. Step 4: Simplify right side
    100,610.08x = 5,778,044,730.47
  5. Step 5: Solve for x
    x = 5,778,044,730.47/100,610.08
  6. Step 6: Final answer
    x = 57,430.08

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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.