Home / 108,712.40-163,051.12-29,808.32

Finding the Fourth Proportional to 108,712.40, 163,051.12 and 29,808.32

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Solution

The fourth proportional to 108,712.40, 163,051.12 and 29,808.32 is: 44,707.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,712.40 : 163,051.12 = 29,808.32 : x
  2. Step 2: Convert to fraction form
    108,712.40/163,051.12 = 29,808.32/x
  3. Step 3: Cross multiply
    108,712.40x = 163,051.12 × 29,808.32
  4. Step 4: Simplify right side
    108,712.40x = 4,860,279,961.32
  5. Step 5: Solve for x
    x = 4,860,279,961.32/108,712.40
  6. Step 6: Final answer
    x = 44,707.69

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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.