Home / 103,669.76-143,058.40-58,349.68

Finding the Fourth Proportional to 103,669.76, 143,058.40 and 58,349.68

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Solution

The fourth proportional to 103,669.76, 143,058.40 and 58,349.68 is: 80,519.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,669.76 : 143,058.40 = 58,349.68 : x
  2. Step 2: Convert to fraction form
    103,669.76/143,058.40 = 58,349.68/x
  3. Step 3: Cross multiply
    103,669.76x = 143,058.40 × 58,349.68
  4. Step 4: Simplify right side
    103,669.76x = 8,347,411,861.31
  5. Step 5: Solve for x
    x = 8,347,411,861.31/103,669.76
  6. Step 6: Final answer
    x = 80,519.26

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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.