Home / 103,630.08-143,006.40-58,310.58

Finding the Fourth Proportional to 103,630.08, 143,006.40 and 58,310.58

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Solution

The fourth proportional to 103,630.08, 143,006.40 and 58,310.58 is: 80,466.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,630.08 : 143,006.40 = 58,310.58 : x
  2. Step 2: Convert to fraction form
    103,630.08/143,006.40 = 58,310.58/x
  3. Step 3: Cross multiply
    103,630.08x = 143,006.40 × 58,310.58
  4. Step 4: Simplify right side
    103,630.08x = 8,338,786,127.71
  5. Step 5: Solve for x
    x = 8,338,786,127.71/103,630.08
  6. Step 6: Final answer
    x = 80,466.85

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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.