Home / 103,829.09-143,284.12-56,082.42

Finding the Fourth Proportional to 103,829.09, 143,284.12 and 56,082.42

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Solution

The fourth proportional to 103,829.09, 143,284.12 and 56,082.42 is: 77,393.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,829.09 : 143,284.12 = 56,082.42 : x
  2. Step 2: Convert to fraction form
    103,829.09/143,284.12 = 56,082.42/x
  3. Step 3: Cross multiply
    103,829.09x = 143,284.12 × 56,082.42
  4. Step 4: Simplify right side
    103,829.09x = 8,035,720,197.17
  5. Step 5: Solve for x
    x = 8,035,720,197.17/103,829.09
  6. Step 6: Final answer
    x = 77,393.73

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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.