Home / 103,630.06-143,003.58-58,310

Finding the Fourth Proportional to 103,630.06, 143,003.58 and 58,310

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Solution

The fourth proportional to 103,630.06, 143,003.58 and 58,310 is: 80,464.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,630.06 : 143,003.58 = 58,310 : x
  2. Step 2: Convert to fraction form
    103,630.06/143,003.58 = 58,310/x
  3. Step 3: Cross multiply
    103,630.06x = 143,003.58 × 58,310
  4. Step 4: Simplify right side
    103,630.06x = 8,338,538,749.80
  5. Step 5: Solve for x
    x = 8,338,538,749.80/103,630.06
  6. Step 6: Final answer
    x = 80,464.48

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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.