Home / 103,808.54-143,255.78-56,061.89

Finding the Fourth Proportional to 103,808.54, 143,255.78 and 56,061.89

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Solution

The fourth proportional to 103,808.54, 143,255.78 and 56,061.89 is: 77,365.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,808.54 : 143,255.78 = 56,061.89 : x
  2. Step 2: Convert to fraction form
    103,808.54/143,255.78 = 56,061.89/x
  3. Step 3: Cross multiply
    103,808.54x = 143,255.78 × 56,061.89
  4. Step 4: Simplify right side
    103,808.54x = 8,031,189,780.22
  5. Step 5: Solve for x
    x = 8,031,189,780.22/103,808.54
  6. Step 6: Final answer
    x = 77,365.41

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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.