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Finding the Fourth Proportional to 153,379.80, 230,024.30 and 69,091.24

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Solution

The fourth proportional to 153,379.80, 230,024.30 and 69,091.24 is: 103,616.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,379.80 : 230,024.30 = 69,091.24 : x
  2. Step 2: Convert to fraction form
    153,379.80/230,024.30 = 69,091.24/x
  3. Step 3: Cross multiply
    153,379.80x = 230,024.30 × 69,091.24
  4. Step 4: Simplify right side
    153,379.80x = 15,892,664,117.13
  5. Step 5: Solve for x
    x = 15,892,664,117.13/153,379.80
  6. Step 6: Final answer
    x = 103,616.41

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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.