Home / 103,976.91-143,488.53-56,230.65

Finding the Fourth Proportional to 103,976.91, 143,488.53 and 56,230.65

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Solution

The fourth proportional to 103,976.91, 143,488.53 and 56,230.65 is: 77,598.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,976.91 : 143,488.53 = 56,230.65 : x
  2. Step 2: Convert to fraction form
    103,976.91/143,488.53 = 56,230.65/x
  3. Step 3: Cross multiply
    103,976.91x = 143,488.53 × 56,230.65
  4. Step 4: Simplify right side
    103,976.91x = 8,068,453,309.44
  5. Step 5: Solve for x
    x = 8,068,453,309.44/103,976.91
  6. Step 6: Final answer
    x = 77,598.51

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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.