Home / 112,539.11-168,808.83-45,979.30

Finding the Fourth Proportional to 112,539.11, 168,808.83 and 45,979.30

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Solution

The fourth proportional to 112,539.11, 168,808.83 and 45,979.30 is: 68,969.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,539.11 : 168,808.83 = 45,979.30 : x
  2. Step 2: Convert to fraction form
    112,539.11/168,808.83 = 45,979.30/x
  3. Step 3: Cross multiply
    112,539.11x = 168,808.83 × 45,979.30
  4. Step 4: Simplify right side
    112,539.11x = 7,761,711,837.22
  5. Step 5: Solve for x
    x = 7,761,711,837.22/112,539.11
  6. Step 6: Final answer
    x = 68,969.02

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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.