Home / 104,725.40-144,521.69-56,979.10

Finding the Fourth Proportional to 104,725.40, 144,521.69 and 56,979.10

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Solution

The fourth proportional to 104,725.40, 144,521.69 and 56,979.10 is: 78,631.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,725.40 : 144,521.69 = 56,979.10 : x
  2. Step 2: Convert to fraction form
    104,725.40/144,521.69 = 56,979.10/x
  3. Step 3: Cross multiply
    104,725.40x = 144,521.69 × 56,979.10
  4. Step 4: Simplify right side
    104,725.40x = 8,234,715,826.68
  5. Step 5: Solve for x
    x = 8,234,715,826.68/104,725.40
  6. Step 6: Final answer
    x = 78,631.51

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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.