Home / 103,716.42-143,122.53-58,392.57

Finding the Fourth Proportional to 103,716.42, 143,122.53 and 58,392.57

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Solution

The fourth proportional to 103,716.42, 143,122.53 and 58,392.57 is: 80,578.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,716.42 : 143,122.53 = 58,392.57 : x
  2. Step 2: Convert to fraction form
    103,716.42/143,122.53 = 58,392.57/x
  3. Step 3: Cross multiply
    103,716.42x = 143,122.53 × 58,392.57
  4. Step 4: Simplify right side
    103,716.42x = 8,357,292,351.60
  5. Step 5: Solve for x
    x = 8,357,292,351.60/103,716.42
  6. Step 6: Final answer
    x = 80,578.30

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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.