Home / 103,958.08-143,498.98-61,516.50

Finding the Fourth Proportional to 103,958.08, 143,498.98 and 61,516.50

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Solution

The fourth proportional to 103,958.08, 143,498.98 and 61,516.50 is: 84,914.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,958.08 : 143,498.98 = 61,516.50 : x
  2. Step 2: Convert to fraction form
    103,958.08/143,498.98 = 61,516.50/x
  3. Step 3: Cross multiply
    103,958.08x = 143,498.98 × 61,516.50
  4. Step 4: Simplify right side
    103,958.08x = 8,827,555,003.17
  5. Step 5: Solve for x
    x = 8,827,555,003.17/103,958.08
  6. Step 6: Final answer
    x = 84,914.56

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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.