Home / 112,505.40-168,563.70-73,042.20

Finding the Fourth Proportional to 112,505.40, 168,563.70 and 73,042.20

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Solution

The fourth proportional to 112,505.40, 168,563.70 and 73,042.20 is: 109,437.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,505.40 : 168,563.70 = 73,042.20 : x
  2. Step 2: Convert to fraction form
    112,505.40/168,563.70 = 73,042.20/x
  3. Step 3: Cross multiply
    112,505.40x = 168,563.70 × 73,042.20
  4. Step 4: Simplify right side
    112,505.40x = 12,312,263,488.14
  5. Step 5: Solve for x
    x = 12,312,263,488.14/112,505.40
  6. Step 6: Final answer
    x = 109,437.09

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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.