Home / 103,872.92-143,344.71-56,126.25

Finding the Fourth Proportional to 103,872.92, 143,344.71 and 56,126.25

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Solution

The fourth proportional to 103,872.92, 143,344.71 and 56,126.25 is: 77,454.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,872.92 : 143,344.71 = 56,126.25 : x
  2. Step 2: Convert to fraction form
    103,872.92/143,344.71 = 56,126.25/x
  3. Step 3: Cross multiply
    103,872.92x = 143,344.71 × 56,126.25
  4. Step 4: Simplify right side
    103,872.92x = 8,045,401,029.64
  5. Step 5: Solve for x
    x = 8,045,401,029.64/103,872.92
  6. Step 6: Final answer
    x = 77,454.27

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1.5x scale

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.