Home / 103,872.74-143,344.28-56,126.07

Finding the Fourth Proportional to 103,872.74, 143,344.28 and 56,126.07

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Solution

The fourth proportional to 103,872.74, 143,344.28 and 56,126.07 is: 77,453.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,872.74 : 143,344.28 = 56,126.07 : x
  2. Step 2: Convert to fraction form
    103,872.74/143,344.28 = 56,126.07/x
  3. Step 3: Cross multiply
    103,872.74x = 143,344.28 × 56,126.07
  4. Step 4: Simplify right side
    103,872.74x = 8,045,351,233.69
  5. Step 5: Solve for x
    x = 8,045,351,233.69/103,872.74
  6. Step 6: Final answer
    x = 77,453.93

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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.