Home / 103,625.06-142,996.68-58,305

Finding the Fourth Proportional to 103,625.06, 142,996.68 and 58,305

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Solution

The fourth proportional to 103,625.06, 142,996.68 and 58,305 is: 80,457.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,625.06 : 142,996.68 = 58,305 : x
  2. Step 2: Convert to fraction form
    103,625.06/142,996.68 = 58,305/x
  3. Step 3: Cross multiply
    103,625.06x = 142,996.68 × 58,305
  4. Step 4: Simplify right side
    103,625.06x = 8,337,421,427.40
  5. Step 5: Solve for x
    x = 8,337,421,427.40/103,625.06
  6. Step 6: Final answer
    x = 80,457.58

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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.