Home / 208,588.14-312,891.32-102,061.80

Finding the Fourth Proportional to 208,588.14, 312,891.32 and 102,061.80

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Solution

The fourth proportional to 208,588.14, 312,891.32 and 102,061.80 is: 153,097.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,588.14 : 312,891.32 = 102,061.80 : x
  2. Step 2: Convert to fraction form
    208,588.14/312,891.32 = 102,061.80/x
  3. Step 3: Cross multiply
    208,588.14x = 312,891.32 × 102,061.80
  4. Step 4: Simplify right side
    208,588.14x = 31,934,251,323.58
  5. Step 5: Solve for x
    x = 31,934,251,323.58/208,588.14
  6. Step 6: Final answer
    x = 153,097.16

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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.