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Finding the Fourth Proportional to 111,430.29, 167,145.78 and 28,324.29

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Solution

The fourth proportional to 111,430.29, 167,145.78 and 28,324.29 is: 42,486.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,430.29 : 167,145.78 = 28,324.29 : x
  2. Step 2: Convert to fraction form
    111,430.29/167,145.78 = 28,324.29/x
  3. Step 3: Cross multiply
    111,430.29x = 167,145.78 × 28,324.29
  4. Step 4: Simplify right side
    111,430.29x = 4,734,285,545.00
  5. Step 5: Solve for x
    x = 4,734,285,545.00/111,430.29
  6. Step 6: Final answer
    x = 42,486.52

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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.