Home / 103,872.99-143,344.72-56,126.35

Finding the Fourth Proportional to 103,872.99, 143,344.72 and 56,126.35

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Solution

The fourth proportional to 103,872.99, 143,344.72 and 56,126.35 is: 77,454.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,872.99 : 143,344.72 = 56,126.35 : x
  2. Step 2: Convert to fraction form
    103,872.99/143,344.72 = 56,126.35/x
  3. Step 3: Cross multiply
    103,872.99x = 143,344.72 × 56,126.35
  4. Step 4: Simplify right side
    103,872.99x = 8,045,415,925.37
  5. Step 5: Solve for x
    x = 8,045,415,925.37/103,872.99
  6. Step 6: Final answer
    x = 77,454.36

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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.