Home / 104,145.84-143,721.26-56,399.19

Finding the Fourth Proportional to 104,145.84, 143,721.26 and 56,399.19

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Solution

The fourth proportional to 104,145.84, 143,721.26 and 56,399.19 is: 77,830.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,145.84 : 143,721.26 = 56,399.19 : x
  2. Step 2: Convert to fraction form
    104,145.84/143,721.26 = 56,399.19/x
  3. Step 3: Cross multiply
    104,145.84x = 143,721.26 × 56,399.19
  4. Step 4: Simplify right side
    104,145.84x = 8,105,762,649.78
  5. Step 5: Solve for x
    x = 8,105,762,649.78/104,145.84
  6. Step 6: Final answer
    x = 77,830.88

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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.