Home / 102,419.62-153,518.46-52,431.16

Finding the Fourth Proportional to 102,419.62, 153,518.46 and 52,431.16

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Solution

The fourth proportional to 102,419.62, 153,518.46 and 52,431.16 is: 78,589.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,419.62 : 153,518.46 = 52,431.16 : x
  2. Step 2: Convert to fraction form
    102,419.62/153,518.46 = 52,431.16/x
  3. Step 3: Cross multiply
    102,419.62x = 153,518.46 × 52,431.16
  4. Step 4: Simplify right side
    102,419.62x = 8,049,150,939.21
  5. Step 5: Solve for x
    x = 8,049,150,939.21/102,419.62
  6. Step 6: Final answer
    x = 78,589.93

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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.