Home / 103,664.23-143,020.84-62,841.45

Finding the Fourth Proportional to 103,664.23, 143,020.84 and 62,841.45

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Solution

The fourth proportional to 103,664.23, 143,020.84 and 62,841.45 is: 86,699.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,664.23 : 143,020.84 = 62,841.45 : x
  2. Step 2: Convert to fraction form
    103,664.23/143,020.84 = 62,841.45/x
  3. Step 3: Cross multiply
    103,664.23x = 143,020.84 × 62,841.45
  4. Step 4: Simplify right side
    103,664.23x = 8,987,636,272.39
  5. Step 5: Solve for x
    x = 8,987,636,272.39/103,664.23
  6. Step 6: Final answer
    x = 86,699.49

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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.