Home / 103,707.88-143,115.24-58,385.76

Finding the Fourth Proportional to 103,707.88, 143,115.24 and 58,385.76

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Solution

The fourth proportional to 103,707.88, 143,115.24 and 58,385.76 is: 80,571.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,707.88 : 143,115.24 = 58,385.76 : x
  2. Step 2: Convert to fraction form
    103,707.88/143,115.24 = 58,385.76/x
  3. Step 3: Cross multiply
    103,707.88x = 143,115.24 × 58,385.76
  4. Step 4: Simplify right side
    103,707.88x = 8,355,892,054.98
  5. Step 5: Solve for x
    x = 8,355,892,054.98/103,707.88
  6. Step 6: Final answer
    x = 80,571.43

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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.