Home / 124,909.36-172,446.24-82,590.64

Finding the Fourth Proportional to 124,909.36, 172,446.24 and 82,590.64

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Solution

The fourth proportional to 124,909.36, 172,446.24 and 82,590.64 is: 114,022.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,909.36 : 172,446.24 = 82,590.64 : x
  2. Step 2: Convert to fraction form
    124,909.36/172,446.24 = 82,590.64/x
  3. Step 3: Cross multiply
    124,909.36x = 172,446.24 × 82,590.64
  4. Step 4: Simplify right side
    124,909.36x = 14,242,445,327.19
  5. Step 5: Solve for x
    x = 14,242,445,327.19/124,909.36
  6. Step 6: Final answer
    x = 114,022.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.