Home / 144,688.68-217,095.39-78,115.59

Finding the Fourth Proportional to 144,688.68, 217,095.39 and 78,115.59

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Solution

The fourth proportional to 144,688.68, 217,095.39 and 78,115.59 is: 117,207.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,688.68 : 217,095.39 = 78,115.59 : x
  2. Step 2: Convert to fraction form
    144,688.68/217,095.39 = 78,115.59/x
  3. Step 3: Cross multiply
    144,688.68x = 217,095.39 × 78,115.59
  4. Step 4: Simplify right side
    144,688.68x = 16,958,534,476.13
  5. Step 5: Solve for x
    x = 16,958,534,476.13/144,688.68
  6. Step 6: Final answer
    x = 117,207.06

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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.