Home / 105,190.05-145,175.99-59,859.21

Finding the Fourth Proportional to 105,190.05, 145,175.99 and 59,859.21

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Solution

The fourth proportional to 105,190.05, 145,175.99 and 59,859.21 is: 82,613.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,190.05 : 145,175.99 = 59,859.21 : x
  2. Step 2: Convert to fraction form
    105,190.05/145,175.99 = 59,859.21/x
  3. Step 3: Cross multiply
    105,190.05x = 145,175.99 × 59,859.21
  4. Step 4: Simplify right side
    105,190.05x = 8,690,120,072.37
  5. Step 5: Solve for x
    x = 8,690,120,072.37/105,190.05
  6. Step 6: Final answer
    x = 82,613.52

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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.