Home / 103,727.84-143,132.58-58,404.66

Finding the Fourth Proportional to 103,727.84, 143,132.58 and 58,404.66

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Solution

The fourth proportional to 103,727.84, 143,132.58 and 58,404.66 is: 80,591.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,727.84 : 143,132.58 = 58,404.66 : x
  2. Step 2: Convert to fraction form
    103,727.84/143,132.58 = 58,404.66/x
  3. Step 3: Cross multiply
    103,727.84x = 143,132.58 × 58,404.66
  4. Step 4: Simplify right side
    103,727.84x = 8,359,609,669.82
  5. Step 5: Solve for x
    x = 8,359,609,669.82/103,727.84
  6. Step 6: Final answer
    x = 80,591.76

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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.