Home / 103,936.55-143,436.63-58,000.21

Finding the Fourth Proportional to 103,936.55, 143,436.63 and 58,000.21

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Solution

The fourth proportional to 103,936.55, 143,436.63 and 58,000.21 is: 80,042.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,936.55 : 143,436.63 = 58,000.21 : x
  2. Step 2: Convert to fraction form
    103,936.55/143,436.63 = 58,000.21/x
  3. Step 3: Cross multiply
    103,936.55x = 143,436.63 × 58,000.21
  4. Step 4: Simplify right side
    103,936.55x = 8,319,354,371.69
  5. Step 5: Solve for x
    x = 8,319,354,371.69/103,936.55
  6. Step 6: Final answer
    x = 80,042.63

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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.