Home / 154,070.10-231,105.15-69,830.10

Finding the Fourth Proportional to 154,070.10, 231,105.15 and 69,830.10

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Solution

The fourth proportional to 154,070.10, 231,105.15 and 69,830.10 is: 104,745.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,070.10 : 231,105.15 = 69,830.10 : x
  2. Step 2: Convert to fraction form
    154,070.10/231,105.15 = 69,830.10/x
  3. Step 3: Cross multiply
    154,070.10x = 231,105.15 × 69,830.10
  4. Step 4: Simplify right side
    154,070.10x = 16,138,095,735.02
  5. Step 5: Solve for x
    x = 16,138,095,735.02/154,070.10
  6. Step 6: Final answer
    x = 104,745.15

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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.