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Finding the Fourth Proportional to 103,658.82, 143,047.44 and 58,336.80

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Solution

The fourth proportional to 103,658.82, 143,047.44 and 58,336.80 is: 80,503.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,658.82 : 143,047.44 = 58,336.80 : x
  2. Step 2: Convert to fraction form
    103,658.82/143,047.44 = 58,336.80/x
  3. Step 3: Cross multiply
    103,658.82x = 143,047.44 × 58,336.80
  4. Step 4: Simplify right side
    103,658.82x = 8,344,929,897.79
  5. Step 5: Solve for x
    x = 8,344,929,897.79/103,658.82
  6. Step 6: Final answer
    x = 80,503.81

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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.