Home / 103,988.37-143,503.98-56,241.72

Finding the Fourth Proportional to 103,988.37, 143,503.98 and 56,241.72

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Solution

The fourth proportional to 103,988.37, 143,503.98 and 56,241.72 is: 77,613.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,988.37 : 143,503.98 = 56,241.72 : x
  2. Step 2: Convert to fraction form
    103,988.37/143,503.98 = 56,241.72/x
  3. Step 3: Cross multiply
    103,988.37x = 143,503.98 × 56,241.72
  4. Step 4: Simplify right side
    103,988.37x = 8,070,910,662.05
  5. Step 5: Solve for x
    x = 8,070,910,662.05/103,988.37
  6. Step 6: Final answer
    x = 77,613.59

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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.